Front bump stops

[Abstrastic]

On my 2004 Z71 Tahoe the front bump stops are sitting on the lower control arm at stock height is this normal; there is no space between the bump stop and control arm for up travel unless it just pushes on the bump stop more...

This doesn't seem right at all to me; is it normal?

 

[chauncey0337]

Seems abnormal to me too but mine sits the same way. So, it's normal or we have the same problem. I'm hoping for the latter.

 

[WA Sparky]

All 2000-2006 stock suspensions I have seen sit this way, but I don't know why.

 

[Oshkosh]

My 2000 4x4, XL sits the same way, was going to ask the same question thinking my torsion bars where gone or something....

 

[Cobra]

My 04 is the same before the drop and after. I thought something maybe wrong but, I checked my neighbors stock 04 and it's also the same. So I have to assume it's normal..

 

[spearna]

Bump Stop Part Number 2001 Yukon

I'm bumping this thread to add helpful info.

In my search for lowest cost replacement OEM bump stops (bumpers), I was only able to find one place that sells them:
www.GMPartsGiant.com

Front Bumpers: P/N - 15153958
Rear Bumpers: P/N - 15039397

My 2001 Yukon SLT front does contact the front bumpers, much like Abstrastic said.

 

[Okiedave]

I noticed this just today on my 01 Yukon XL Slt with 156k,& the passenger side one is mostly gone. I was going to look at my new to me 2004 Denali for comparison as it only has 40k and it still bone stock.

Thanks for the links for the stops, I need to pick up a pair for the 01.

 

[houstone003]

so im guessing this is normal?

 

[klljoe]

Just ordered a set, has anyone replaced theirs yet? are they just pressed in? The center is hollow, do they unscrew? Thanks in advance for your reply.

 

[fiatdale]

Its normal, they all sit like that. GM designed it that way so it rides on the bump stop.

 

[digitalfiend]

Its normal, they all sit like that. GM designed it that way so it rides on the bump stop.

I've heard that they're designed to be ridden on, that it's part of the design. I believe the proper name of them is "jounce stops"...and their intent is to act as part dampener and part bump stop. The problem here is I can't find anything concrete to confirm this. My 2004 Tahoe rode on the stops in stock height, and it rides on them when lowered too, so you're not alone.

 

[DPGDirk]

It is absolutely normal.

The angle of the arm and placement of the bumpstop mean that there's a lot more travel outwards at the tire as opposed to the movement of the lower arm inboard where the bumpstop is mounted.

Strange set-up I'll admit, but nothing to fear there. Probably just no good place to mount a bumpstop in a more outward position...

 

[speedmachine]

Just ordered a set, has anyone replaced theirs yet? are they just pressed in? The center is hollow, do they unscrew? Thanks in advance for your reply.

Replaced mine the other day- they press in with no bolts or screws. Used OEM replacements, $50 for a pair from the dealer...cheaper online but mine were thrashed and couldn't wait. Also in Canada where parts tend to be more expensive. Took minutes to replace and it rides and handles SO much better, definitely worth doing if the original ones are toast.

 

[ivin74]

It is normal for the bump stops to sit on the A arms. I cut mine of thinking it was not normal and ended up replacing them because my Yukon's front end felt like it was falling apart.

 

[NORCAL SS]

yes its normal

 

[Kmar]

I have a 2006 yukon denali and i think it has been lowered in the front. The torsion key bolts are backed out all the way and I was wondering if this is right? i was hoping someone with a stock suspension could measure their bolts and tell me how much of their bolt is showing and i can try to tighten mine up. I have read that the lower arm is supposed to be touching the bump stop but I don't know how much.

Thanks

 

[NORCAL SS]

kmargaitis it varies. usually bolts are pushed in 3/4 of the way but left and ride side will not sit even if both in the exact amount.

 

[markvdb]

Bump Stop Design

If your tahoe has torsion bars for front springs, it is definitely designed to ride on the bump stops. Torsion bars are linear springs, they don't have any dampening ability. The bump stops provide this so there is no "wallowing" when going over curbs etc. If you replace your stock ones, try z71 stops, part number 15153959 (2002 tahoe). The difference is amazing.

 

[DPGDirk]

If your tahoe has torsion bars for front springs, it is definitely designed to ride on the bump stops. Torsion bars are linear springs, they don't have any dampening ability. The bump stops provide this so there is no "wallowing" when going over curbs etc. If you replace your stock ones, try z71 stops, part number 15153959 (2002 tahoe). The difference is amazing.

Is your truck lifted? Lowered? Just wondering if the Z71 bumpstops added any lift or not...?

Thanks!

 

[markvdb]

Mine is stock height.