Front Bump Stop Issue

[ridin_low07]

Previous owner hacked off the front bump stop cups and I am having a helluva time find some sort of replacement to bolt In. Truck is an 01 Tahoe with belltech drop spindles, Purple Keys and Stock replacement shocks. The front end bounces really bad and sways when going over bumps and dips. Looking to fix asap. Suggestions?

 

[BlackedOutHoe]

Belltech Street Performance shocks. These are what I run so can say confidently they will all but fix the problem as I ran into the same thing prior.

 

[TheAutumnWind]

Belltech Street Performance shocks. These are what I run so can say confidently they will all but fix the problem as I ran into the same thing prior.

No that wont fix it. THe front bump stops are actually jounce stops and are what give the front en a progressive feel.

 

[TheAutumnWind]

Previous owner hacked off the front bump stop cups and I am having a helluva time find some sort of replacement to bolt In. Truck is an 01 Tahoe with belltech drop spindles, Purple Keys and Stock replacement shocks. The front end bounces really bad and sways when going over bumps and dips. Looking to fix asap. Suggestions?

View attachment 256153

I would consider something like this:

https://www.amazon.com/Dorman-523-0...keywords=zq9+bump+stops&qid=1598989082&sr=8-2

or this:

https://www.amazon.com/gp/product/B0026M9BDC/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

I am running the latter in my gmt400 to replace hard AF bump stops. Works great! No more sudden jarring when I hit the stops.

I would imagine that you could use the bolt in cups and find a stock replacement that would fit, if not one of those or something similar would probably work well as is.

 

[BlackedOutHoe]

@TheAutumnWind Are you saying the rubber part or the cup itself? I am saying I have no rubber, just the cup and BT SP shocks and mine rides fine.

 

[TheAutumnWind]

@TheAutumnWind Are you saying the rubber part or the cup itself? I am saying I have no rubber, just the cup and BT SP shocks and mine rides fine.

You really should have the "rubber" part. What happens when you bottom it out? You must have some mighty fine roads in your area.

I am sure that the stock replacement shocks are not doing @ridin_low07 any favors with the keys as well. A shorter body shock like you are suggesting would likely be helpful, but jounce stops do make a big difference as torsion bars are linear and the jounces provide a progressive feel at the end of the travel. In stock form these trucks nearly ride on the stops.

 

[BADRIDES]

I just put these on mine. I had to trim them down a bit cause my torsion bars are turned down a tad.

https://www.amazon.com/gp/product/B07G3QBP5P/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1

 

[ridin_low07]

I just put these on mine. I had to trim them down a bit cause my torsion bars are turned down a tad.

https://www.amazon.com/gp/product/B07G3QBP5P/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1

I domt have the cups to put those in. I have to drill into the LCA and bolt some in

 

[BlackedOutHoe]

You really should have the "rubber" part. What happens when you bottom it out? You must have some mighty fine roads in your area.

I am sure that the stock replacement shocks are not doing @ridin_low07 any favors with the keys as well. A shorter body shock like you are suggesting would likely be helpful, but jounce stops do make a big difference as torsion bars are linear and the jounces provide a progressive feel at the end of the travel. In stock form these trucks nearly ride on the stops.

I don't bottom out in the front, ever. I also pay attention and avoid parts of the road that would possibly encourage full suspension travel. (Not saying you don't).

Agree, keys aren't helping, but I can confidently say that I had the same problem and changing to a progressive rate shock fixed it for me.

 

[TheAutumnWind]

I don't bottom out in the front, ever. I also pay attention and avoid parts of the road that would possibly encourage full suspension travel. (Not saying you don't).

Agree, keys aren't helping, but I can confidently say that I had the same problem and changing to a progressive rate shock fixed it for me.

Interesting that works so well for you. I have no experience with those shocks.

I live by a quarry so all the heavy trucks are hell on the roads. There is not too many options to avoid bad parts.

In my experience a lot of people with poor ride quality on these trucks assume that the front stops are *just* bump stops, but they do contribute to the ride pretty significantly. Many of these trucks at this point have worn out or missing jounce stops. On my old truck I trimmed them a bit when it was decranked and that worked well. Rode like stock. It wasn't slammed though.

 

[BlackedOutHoe]

Interesting that works so well for you. I have no experience with those shocks.

I live by a quarry so all the heavy trucks are hell on the roads. There is not too many options to avoid bad parts.

In my experience a lot of people with poor ride quality on these trucks assume that the front stops are *just* bump stops, but they do contribute to the ride pretty significantly. Many of these trucks at this point have worn out or missing jounce stops. On my old truck I trimmed them a bit when it was decranked and that worked well. Rode like stock. It wasn't slammed though.

A lot of it I've found comes from setting it up right when you mod it (lift or lower). Find out your suspension travel, and match the proper size tire with a good shock and most problems can be avoided. It's when you try to stuff big tires on a lift kit or slam too low on stock size tires you run into most problems.

 

[Rocket Man]

A lot of it I've found comes from setting it up right when you mod it (lift or lower). Find out your suspension travel, and match the proper size tire with a good shock and most problems can be avoided. It's when you try to stuff big tires on a lift kit or slam too low on stock size tires you run into most problems.

If you’re not running jounce stops in a torsion bar system, you are most definitely not running optimum by any means. They’re not bump stops per se but are utilized as a fulcrum point for the torsion bars. Your shocks aren’t going to do what the jounce stops do. I can just about guarantee you that if you put jounce stops back in, your ride will improve. Your shocks are helping to cover up what you did to the suspension by removing your jounce stops. Tire size has little to do with it, and unless your shocks are bottoming or don’t have enough lift they’re not the problem either. I have run both 26’s and now 22’s with 2” Belltech drop spindles and Bilstein 4600’s combined with a DJM sway bar and Energy Suspension end links and poly bushings and I could definitely feel the difference when I replaced my worn-out bump stops. You should put a set in and see. I saw on the FB group Tahoe Nation they were telling people to remove them and guys were cutting the cups off, and then they were having handling/ ride issues and wondering why. LMAO.

 

[TheAutumnWind]

If you’re not running jounce stops in a torsion bar system, you are most definitely not running optimum by any means. They’re not bump stops per se but are utilized as a fulcrum point for the torsion bars. Your shocks aren’t going to do what the jounce stops do. I can just about guarantee you that if you put jounce stops back in, your ride will improve. Your shocks are helping to cover up what you did to the suspension by removing your jounce stops. Tire size has little to do with it, and unless your shocks are bottoming or don’t have enough lift they’re not the problem either. I have run both 26’s and now 22’s with 2” Belltech drop spindles and Bilstein 4600’s combined with a DJM sway bar and Energy Suspension end links and poly bushings and I could definitely feel the difference when I replaced my worn-out bump stops. You should put a set in and see. I saw on the FB group Tahoe Nation they were telling people to remove them and guys were cutting the cups off, and then they were having handling/ ride issues and wondering why. LMAO.

This is why I stay away from FB groups...

 

[Joseph Garcia]

This is why I stay away from FB groups...

Good practice, IMO.

 

[Sam Harris]

Junkyard..? Cut some off, and weld on yours.. PITA, but, like @Rocket Man , and others have stated, if this is still a torsion bar setup, and not converted to coilovers, those bounce stops have everything to do with the functionality of the torsion front suspension. The fulcrum point needs to be there, or it’s just like a wobbly a$$ spring.

 

[mountie]

( Jumping from my other post )..... I search 'bump stops' and all's I get are the rears.
Is there a different name for the 'rubber stops' on the front??

 

[Sam Harris]

( Jumping from my other post )..... I search 'bump stops' and all's I get are the rears.
Is there a different name for the 'rubber stops' on the front??

Jounce stops

 

[mountie]

Jounce stops

Thanks.... ( sounds like one of those back yard 'B-Day' blow-up jumpers )

 

[Sam Harris]

Thanks.... ( sounds like one of those back yard 'B-Day' blow-up jumpers )

These are the ones I used:
Dorman 905-208 Front Lower Suspension Control Arm Bumper Compatible with Select Cadillac / Chevrolet / GMC Models https://a.co/d/eIMTryF

 

[mountie]

These are the ones I used:
Dorman 905-208 Front Lower Suspension Control Arm Bumper Compatible with Select Cadillac / Chevrolet / GMC Models https://a.co/d/eIMTryF

Amazon has only 1 available...... but thanks, I'll look somewhere else....