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Shocks for 2005 2500hd. …

ChrisV

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Probably been talked about before. Would like something that’s adjustable when towing. Currently have 5100s and it sucks imo.

Also, anyone ever run sway bars in the back?

0D879E5B-50D7-433D-9F8F-4000AE7CBBBD.jpeg
 

eand28

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Do you have airbags in the back?

Fox and king both offer adjustable shocks. I have non adjustable reservoir fox 2.0’s on my duramax and like them
 

timstoy

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Bilstien shocks and air bags. Rear sway bar is always a good idea for towing. I think the front sway bar is hollow, after market makes solid front sway bars.
 

rivermobster

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Probably been talked about before. Would like something that’s adjustable when towing. Currently have 5100s and it sucks imo.

Also, anyone ever run sway bars in the back?

View attachment 1328801

Dang. Never heard anyone complain about those shocks before.

What don't you like about em?

Looks like you need air bags and EQ bars from the pic?
 

King295

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Not a cat eye but I recently put a Cognito leveling kit with the Fox 2.5's on my 2019 Duramax and am really happy with them. Adjustability is pretty good actually. I initially went way too conservative on the torsion bars initially and cranked the shocks up thinking they were too soft. Surprisingly stiffened up the front end with the clickers. I ended up cranking the keys to Cognito's specs and dropped the shocks back down to slightly above factory settings and it feels good. I haven't put anything really heavy on my truck yet to see if I need to adjust the rear yet, but my 22' wake board boat doesn't bother the rear end at all.

I wanted to go King's but everyone I talked to said the Fox's were better for my specific application due to how the front shocks mounted.
 

ChrisV

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I have bags. It was just low on that pic. I usually pump it up to 60psi and it’s slightly angled. As for the shocks, they just don’t have enough compression I think.

Might order these.
2B31F858-7AA0-42E9-8299-38A61160FF6E.jpeg
 

ChrisV

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Not a cat eye but I recently put a Cognito leveling kit with the Fox 2.5's on my 2019 Duramax and am really happy with them. Adjustability is pretty good actually. I initially went way too conservative on the torsion bars initially and cranked the shocks up thinking they were too soft. Surprisingly stiffened up the front end with the clickers. I ended up cranking the keys to Cognito's specs and dropped the shocks back down to slightly above factory settings and it feels good. I haven't put anything really heavy on my truck yet to see if I need to adjust the rear yet, but my 22' wake board boat doesn't bother the rear end at all.

I wanted to go King's but everyone I talked to said the Fox's were better for my specific application due to how the front shocks mounted.
I was looking for the 2.5 foxes but they don’t make it for my year.
 

Backlash

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I don't know which I like more! Your truck or your trailer!! Both are BEAUTIFUL!! 👍
 

rivermobster

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I have bags. It was just low on that pic. I usually pump it up to 60psi and it’s slightly angled. As for the shocks, they just don’t have enough compression I think.

Might order these. View attachment 1328854

You have EQ bars? It looks like you don't from that pic.

I take it you are bottoming out?
 

ChrisV

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You have EQ bars? It looks like you don't from that pic.

I take it you are bottoming out?
No eq bars. Doesn’t bottom out. Just bounces too much for my liking. Didn’t do it two years ago so figured shocks are going out. Might as well get something nice for it.
 

rivermobster

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No eq bars. Doesn’t bottom out. Just bounces too much for my liking. Didn’t do it two years ago so figured shocks are going out. Might as well get something nice for it.

You May have killed em running around with no EQ bars! 😜

I love my Bilstein's. 💪💕
 

02HoWaRd26

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Do you have airbags in the back?

Fox and king both offer adjustable shocks. I have non adjustable reservoir fox 2.0’s on my duramax and like them
Myself as well. Couldn’t have convinced me how much of a difference just the 2.0’s would make. Money damn well spent.
 

rivermobster

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I have no patience for eq bars.

It does take a bit to get em dialed in, but I (personally) wouldn't run without em.

It's also a Major pain to take em on and off without an electric jack, so I do understand the frustration. 😞

The good news is...

They normally double your hitch capacity. 👍🏼

20240131_131759.jpg
 
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ChrisV

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It does take a bit to get em dialed in, but I (personally) wouldn't run without em.

It's also a Major pain to take em on and off without an electric jack, so I do understand the frustration. 😞

The good news is...

They normally double your hitch capacity. 👍🏼

View attachment 1329234
I tow almost everyday and disconnect the trailer when I get to work. I got a pretty big hitch on it so I’m not worried about it breaking.

As stupid as it sound I just need the back end of the truck to stop fluctuating so much when I hit a dip. This is because I’m speeding. 🤣🤣
 

eand28

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I tow almost everyday and disconnect the trailer when I get to work. I got a pretty big hitch on it so I’m not worried about it breaking.

As stupid as it sound I just need the back end of the truck to stop fluctuating so much when I hit a dip. This is because I’m speeding. 🤣🤣
Do you have lift blocks and stock leafs or aftermarket leafs?
 

Uncle Dave

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Bilsteins are digressive vs progressive and a 5100 is less shock than a fox 2.0 - which compares better to a 5160 or B8.

I believe the dampening can be change to progressive on the bigger ones.

The 5100's are better than stock but I wouldnt put them on a 2500.
 

Hammer

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Following, I need shocks on my 05 DMAX. I have no clue what lift it is.
 

eand28

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Following, I need shocks on my 05 DMAX. I have no clue what lift it is.
Got a pic? If your lower control arms are dropped down using a drop bracket, you’ll more than likely need 4-6” lift shocks
 

shunter2005

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Following also. I have Bielstein 5100's on my truck. Overkill for what I use it for. 33K on them and they are beginning to feel just like the crappy Ranchos I got rid of. Hit a dropoff in pavement and it feels like the truck is coming apart. I wouldn't think that they are bad yet, but dang, it sure feels like it.

Started looking for something else, specifically 4600's. Had them on my old truck. The 5100's are just too stiff for pavement driving.
 

Hammer

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Woah. Just a tiny bit too long?? 😱

I called Bilstein's tech support line when I went to replace mine, with my ridiculous lift kit.

They had me make some measurements, and then told me what part numbers to order.

Super helpful. 👍🏼
I bought it like this. Not changing it now. If I did I'd go coil over kit and ditch the torsion bar set up.

But at that point I mine as well buy a new truck... I don't drive it enough to justify a new truck. It's just my tow pig.
 

Hammer

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Damn dawg, you definitely never replaced those shocks. I ordered the fox 2.0 with adjustible resi. Will let you know how it is.
I bought it the way it sits. I only drive it every few months at most . But yeah.... I need to replace the fronts. I took it to a shop and they didn't know how to figure out what shocks I needed. I was annoyed at that incompetents and brought it home...
 

ChrisV

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I bought it the way it sits. I only drive it every few months at most . But yeah.... I need to replace the fronts. I took it to a shop and they didn't know how to figure out what shocks I needed. I was annoyed at that incompetents and brought it home...
Where you live?
 

Hammer

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Where you live?
Santa Clarita. I went to big John's. IMO they don't know what they are doing unless it's bolt on parts with part numbers to cross reference.

I'll never go back there. The guy at the counter didn't want me wasting his time. Too bad, I'd send my brand new truck to them for all the bells and whistles.

I'll drive to OC if I have to now...
 

Hammer

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I’d either run the duals and ditch the shock in the factory location or ditch the duals and just run the single shock in the factory location. Definitely pull one either way and get some measurements.
I was a little confused as to why they have three shocks on there. Seemed over kill for what it is.

Probably go with duals and ditch the stock.
 

USMC2010

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Torklift stableload quick disconnect
These pictures are just the drivers side, easy to install. I also have Firestone riderite air bags but they required about half the air needed once I installed the torklift kit.
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eand28

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I was a little confused as to why they have three shocks on there. Seemed over kill for what it is.

Probably go with duals and ditch the stock.
1706985726119.jpeg


Fox has a catalog with all their shocks. I used the measurements off the old shocks and ordered these foxes. Just need the extended and collapsed length of your old ones
 

Hammer

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View attachment 1330440

Fox has a catalog with all their shocks. I used the measurements off the old shocks and ordered these foxes. Just need the extended and collapsed length of your old ones
That sounds easy enough. I've never been a "lifted truck guy" so I never built a truck or paid attention to suspension components and required upgrades when it came to lifts and bigger tires.

I'm mechanically inclined, so I can figure it out with a few pointers.

I appreciate the input from this thread.
 

rivermobster

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I bought it the way it sits. I only drive it every few months at most . But yeah.... I need to replace the fronts. I took it to a shop and they didn't know how to figure out what shocks I needed. I was annoyed at that incompetents and brought it home...

It's not really incompetents, it's not something just anyone can do.

You'd have to have all the shock body dimensions, travel dimensions, length dimensions, for every shock built, right at your finger tips, to be able to figure it out.

Then you need all the suspension travel dimensions, and you'd have to know the shock angles as well!

So no one is gonna have all the first group of dimensions except for the tech support guy at the shock company.

When I called Bilstein's tech support, ONE of the MANY questions they asked me was how much "clean" area there was on the shock rod and how much aera was "not clean".

On your dual shocks, you can see there is zero "not clean" area because the shock body is Way to long and the shocks are bottoming out! You can see the damage on the front dual shock from this.

The third single shock looks as it should. There is a "clean" area on the shock rod and a "non clean" area. The shock in not bottoming out, and that is how it should be.

I don't even know how anyone could figure out the correct dual shock dimensions, with a shock that's bottoming out, but I'd guess any shock company can get pretty close.

Decide what brand of shocks you want to run, and then call their tech support line.

Be ready with a tape measure and tools to remove the shocks.

That's what I had to do, and my truck rides perfectly now. It was totally worth my time to try and figure it out. 👍🏼

20240203_121130.jpg
 

Backlash

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I know the last few posts were related to the front end and guys talking about how to dial that in. With a bolt-on drop bracket kit, it definitely changes things up. Not always for the best.

As far as the rears go, you can always reach out to Deaver Springs. Tell them what you have and what you'd like to accomplish. They can build you a leaf spring pack and can adjust the spring rates to suite your needs. More travel, less travel, stiffer ride, load carrying capacity, etc. A lot of times they can solve your rear end issues and leave you happy. I know people who have done this and then gone back to Deaver and had the springs tuned or re-arched. Ultimately, you'll get the results you were hoping for. Once you have the spring situation sorted out, then work on the shocks.

For these heavier trucks, I personally think 2.0" shocks are too small. I would shoot for at least a 2.5" shock and run reservoirs as well. I know everybody has their preferences and what works for them....but I like blue.

King blue specifically. 😎
 

MARCYTECH

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Fox and king are nearly the same exact thing when talking about oem replacements. A fox or king 2.0 with resi will be plenty back there or even in the front. After installing them you probably still won’t like them though because shock valving is not a “one size fits all” type of thing. Text me, tell me what they’re doing that you don’t like and we can revalve them to correct all that.
 

rivermobster

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I know the last few posts were related to the front end and guys talking about how to dial that in. With a bolt-on drop bracket kit, it definitely changes things up. Not always for the best.

As far as the rears go, you can always reach out to Deaver Springs. Tell them what you have and what you'd like to accomplish. They can build you a leaf spring pack and can adjust the spring rates to suite your needs. More travel, less travel, stiffer ride, load carrying capacity, etc. A lot of times they can solve your rear end issues and leave you happy. I know people who have done this and then gone back to Deaver and had the springs tuned or re-arched. Ultimately, you'll get the results you were hoping for. Once you have the spring situation sorted out, then work on the shocks.

For these heavier trucks, I personally think 2.0" shocks are too small. I would shoot for at least a 2.5" shock and run reservoirs as well. I know everybody has their preferences and what works for them....but I like blue.

King blue specifically. 😎

Good points...

Maybe the front springs sagged causing the shocks to bottom out?

That makes Way more sense than someone set it up that way!
 

Hammer

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It's not really incompetents, it's not something just anyone can do.

You'd have to have all the shock body dimensions, travel dimensions, length dimensions, for every shock built, right at your finger tips, to be able to figure it out.

Then you need all the suspension travel dimensions, and you'd have to know the shock angles as well!

So no one is gonna have all the first group of dimensions except for the tech support guy at the shock company.

When I called Bilstein's tech support, ONE of the MANY questions they asked me was how much "clean" area there was on the shock rod and how much aera was "not clean".

On your dual shocks, you can see there is zero "not clean" area because the shock body is Way to long and the shocks are bottoming out! You can see the damage on the front dual shock from this.

The third single shock looks as it should. There is a "clean" area on the shock rod and a "non clean" area. The shock in not bottoming out, and that is how it should be.

I don't even know how anyone could figure out the correct dual shock dimensions, with a shock that's bottoming out, but I'd guess any shock company can get pretty close.

Decide what brand of shocks you want to run, and then call their tech support line.

Be ready with a tape measure and tools to remove the shocks.

That's what I had to do, and my truck rides perfectly now. It was totally worth my time to try and figure it out. 👍🏼

View attachment 1330518
They are the local “performance off-road shop” . I expect a performance shop that specializes in lifts to know how to diagnose/analyze and replace shocks and suspension components.

They don’t deserve an excuse for not knowing how to replace shocks on a truck.

It’s even worse for them that I got the answer from RDP on how to do it myself.
 

Hammer

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I know the last few posts were related to the front end and guys talking about how to dial that in. With a bolt-on drop bracket kit, it definitely changes things up. Not always for the best.

As far as the rears go, you can always reach out to Deaver Springs. Tell them what you have and what you'd like to accomplish. They can build you a leaf spring pack and can adjust the spring rates to suite your needs. More travel, less travel, stiffer ride, load carrying capacity, etc. A lot of times they can solve your rear end issues and leave you happy. I know people who have done this and then gone back to Deaver and had the springs tuned or re-arched. Ultimately, you'll get the results you were hoping for. Once you have the spring situation sorted out, then work on the shocks.

For these heavier trucks, I personally think 2.0" shocks are too small. I would shoot for at least a 2.5" shock and run reservoirs as well. I know everybody has their preferences and what works for them....but I like blue.

King blue specifically. 😎
I’ve heard a lot of great things about Deaver. Thanks for the input. 👍
 

rivermobster

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They are the local “performance off-road shop” . I expect a performance shop that specializes in lifts to know how to diagnose/analyze and replace shocks and suspension components.

They don’t deserve an excuse for not knowing how to replace shocks on a truck.

It’s even worse for them that I got the answer from RDP on how to do it myself.

You got this. 👍🏼

I like what @Backlash had to say though. Probably best to get the springs looked at first.

Lots of smart fuckers around here!
 

rivermobster

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I don’t know if I have any issues with the rear leafs? I’d love to ditch the torsion bar set up and go to a coil over kit though. I’d rather have a new truck though…

Oh shit...

Just crank up the torsion bars up front to give the front shocks some room to breathe?

🤷‍♂️

I'm not sure if this is a good idea or not. Maybe someone else knows better?
 

Backlash

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Oh shit...

Just crank up the torsion bars up front to give the front shocks some room to breathe?

🤷‍♂️

I'm not sure if this is a good idea or not. Maybe someone else knows better?
Adjusting the torsion bars opens up another can of worms entirely. Yes, you can do it and create additional height on the front of the truck....but it reduces the ride quality and puts unnecessary strain on other components. It seems when people do this, it creates other problems that never seem to be resolved. Personally, I wouldn't play with the torsion bars too much. I'd put them as close to factory as possible and leave them alone. My opinion, the juice isn't worth the squeeze with factory torsion bars on these trucks. 🤷
 

eand28

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They are the local “performance off-road shop” . I expect a performance shop that specializes in lifts to know how to diagnose/analyze and replace shocks and suspension components.

They don’t deserve an excuse for not knowing how to replace shocks on a truck.

It’s even worse for them that I got the answer from RDP on how to do it myself.

Saw these on Facebook marketplace. They look like they’d be the right size for your lift
 

Smupser

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I have Kings on my 06’ with a 6” lift. I went from 2” bilsteins 5100 to these 2.5”. My biggest concern was going to a bigger shock would make it ride stiff, but the ride actually got better. If you look on Kings website these shocks are specifically valved for the HD’s. The fronts have remote reseviors and the rears are piggybacks.

Only thing…… these were $$$$$$$$$$$$
 

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Backlash

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I have Kings on my 06’ with a 6” lift. I went from 2” bilsteins 5100 to these 2.5”. My biggest concern was going to a bigger shock would make it ride stiff, but the ride actually got better. If you look on Kings website these shocks are specifically valved for the HD’s. The fronts have remote reseviors and the rears are piggybacks.

Only thing…… these were $$$$$$$$$$$$
Folks don't realize the difference until after they've ridden in a truck with King Shocks. The difference is night and day over pretty much everything else. 👍
 
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