Bump stop spacers?

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Bump stop spacers? #806608 04/19/07 04:12 AM

Joined: Apr 2007

Posts: 15

JBSpringer Offline

Need a Spot

My cv joints keep breaking off on my 94 4x4 Toyota pick-up and I have had just about enough.

I have a 4 inch pro comp lift with 26mm downey torsion bars and think that the bump stop spacers are not big enough and the wheel travels too far down and the cv joints over extend and break.

Do you all have a solution or a source for big bump stop spacers?

JB

Re: Bump stop spacers? [Re: JBSpringer] #806609 04/19/07 05:09 AM

Joined: Dec 2003

Posts: 14

San Diego

Ben894x4

Need a Spot

Are you running a front locker?

If you jack up the front and then spin the front wheel with hub locked, you should be able to tell if the CV is binding up or not. If it is, just space the bump with some washers from ACE hardware or Home Depot. I have balljoint spacers that allow extra travel, but I wouldn't think with your setup this will be a big problem.

89 xcab 4x4 22re. 1.5" BJ spacers, 3" shackle and AAL + fender trim. 33x12.5 R15 MT/Rs, 15x10 rockcrawler streetlocks. 488 yukons by ZUK, detroit rear and true-trac front. 2 1/4" cat-back exhaust. Redline gear oil. Rear bumper by bentup.com.

Re: Bump stop spacers? [Re: JBSpringer] #806610 04/19/07 05:32 AM

Joined: Feb 2004

Posts: 1,379

boonies of NH

Scerb

Body Damage is Cool

Its commmingggggg... <img src="/forums/images/graemlins/evil.gif" alt="" />

Check to see if your diff drop brackets are tweaked. When your cv breaks, does it actually "break" or just pop out so that it is able to be popped back in?

The bumpstop that limits your droop affects the upper control arm which is not affected by your 4" lift. Your kit should have 4" drops for the bumpstops which limit the compression on the lower control arm. If you don't have those spacers in then I suppose that MIGHT be your problem, but with the 26mm bars I doubt it.

-Scerb

http://www.scerbfab.com/carb_faq.html

Re: Bump stop spacers? [Re: Scerb] #806611 04/19/07 04:01 PM

Joined: Apr 2007

Posts: 15

JBSpringer Offline

Need a Spot

Thanks for your contributions.

No I don't have any front lockers and I am not sure if the axle broke or just popped out. I think it just popped out but I can't see because the boot did not tear.

Here is a look at the lift and bump stop.

I checked to see if the Differential had moved or shifted but it didn't.

[img]http://[IMG]http://img391.imageshack.us/img391/5971/p4211163tr0.th.jpg[/IMG][/img]

I have the problems with the cv joints when I am at the beach and I am usually loaded in the back and the front lifts up a little.

What do you all suggest?

JB

Last edited by JBSpringer; 04/19/07 04:13 PM.

Re: Bump stop spacers? [Re: JBSpringer] #806612 04/19/07 04:10 PM

Joined: Feb 2004

Posts: 1,379

boonies of NH

Scerb

Body Damage is Cool

Thats... weird. Check to see if the cv can just pop back in. You may need to take it out and tap it with a hammer.

Your bumpstops are setup correctly for your lift, which means the wheels, theoretically, have no more travel then they would stock. You could try extending the upper bumptops which limit your droop. I'm not sure if that is your problem though.

How frequently does this happen? I mean it is not uncommon to break a cv now and then when your spinning tires. But if it happens every single time you go in 4wd then yes something is up.

-Scerb

http://www.scerbfab.com/carb_faq.html

Re: Bump stop spacers? [Re: Scerb] #806613 04/19/07 04:20 PM

Joined: Apr 2007

Posts: 15

JBSpringer Offline

Need a Spot

I will be jacking up the truck later today and pull the knuckle out to get to the cv joint and try to pop it back in.

It usually happens when it articulates while I am loaded in the back and the front is raised as a result.

It has happened 3 times in four years all during a similiar situation.

JB

Re: Bump stop spacers? [Re: JBSpringer] #806614 04/19/07 04:36 PM

Joined: Jan 2000

Posts: 12,153

N. California. USA

4Crawler

Web Wheeler

You could try shimming under the bumpstop to raise it up a little bit if you think that would help:

[Linked Image]

r.c.brown@ieee.org
TruckEditor@tlca.org
Project: 4Crawler
4Crawler OffRoad - 4x4Wire discount code

Re: Bump stop spacers? [Re: 4Crawler] #806615 04/19/07 04:47 PM

Joined: Apr 2007

Posts: 15

JBSpringer Offline

Need a Spot

I will do the washer spacers.

Re: Bump stop spacers? [Re: 4Crawler] #806616 04/19/07 09:12 PM

Joined: Apr 2004

Posts: 2,010

Virginia Beach, VA

87Toy4x4

Body Damage is Cool

i really dont think that's his problem since he has the drop brackets for the lift and doesn't have low profile bumpstops.

so if this happens everytime you go into 4wd, they've been replaced before right?

87 22R PU, 2? body lift, 33? BFG muds, 4.88's, F&R Lock-Rights, Rancho Shocks, EB's Street RV Head w/ 268 Cam, LCE Header, 2" to 2 1/4" exhaust, Flowmaster 50 series, Magnaflow high flow cat, complete Herculined SR5 interior, V6 BB, MC, and calipers.

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