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post #1 of (permalink) Old 04-01-2004, 07:29 PM Thread Starter
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lower control arm resting on bump stop

I was about to replace my shocks and noticed this:

Is is normal for the lower control arm and what appears to be the bump-stop to be touching when the truck is just sitting normal?
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post #2 of (permalink) Old 04-01-2004, 07:51 PM
 
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Re: lower control arm resting on bump stop

looks like your torsion bars have lost some strength, or you cranked them down as far as they will go.
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post #3 of (permalink) Old 04-01-2004, 08:09 PM Thread Starter
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Re: lower control arm resting on bump stop

do they usually wear out in just 4 years? How far should they the lca be below the stop?
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post #4 of (permalink) Old 04-01-2004, 10:20 PM
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Re: lower control arm resting on bump stop

your cv angles look pretty flat, you might want to crank the t bars abit. And yes the tbars can start to sag after a while. It looks like thats what happend to your truck.
post #5 of (permalink) Old 04-01-2004, 11:00 PM
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Re: lower control arm resting on bump stop

Actually its not uncommon for the NBS chevy LCA's to rest like that on the bumpstop.
post #6 of (permalink) Old 04-01-2004, 11:27 PM
 
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Re: lower control arm resting on bump stop

might not be uncommon for an old pice of sh!t but for a truck that someone has taken care of it wont be like that. crank your torsion bars up until you're at least half way between the lower and upper bumpstops. your CV will be alright still and you'll have a decent ride.

T-bars require an 18mm socket
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post #7 of (permalink) Old 04-02-2004, 05:14 PM
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Re: lower control arm resting on bump stop

If your truck is riding on the bumpstops then the ride will be very rough ,cause it wount be able to travel up and down.
post #8 of (permalink) Old 04-02-2004, 07:49 PM
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Re: lower control arm resting on bump stop

i got the same truck as you, except 2wd, with coil springs, and my LCA's are sittin on the bumpstop also. cut off a little of the bumpstop, and there back together again. I went to the dealer, and checked under some brand new trucks about six months ago, when i noticed the problem, and the trucks they had were also sittin on the bumpstops. luckily you can adjust yours, i'm stuck with the rough ride, until i can get bigger coils.
post #9 of (permalink) Old 04-02-2004, 08:22 PM
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Re: lower control arm resting on bump stop

that looks about normal, looks like you got the dreaded 2"s of travel that us ifs guys are haunted by. zero stuff and 2" off drop.

your angle look good id just crank about 1" and call it good, may get alittle better.

the nice thing about t-bars is that if they start to sag you can just crank em right back to wear theyre suposed to be.

in 5 years of owning my 89 ive never noticed any sagging and its used and abused.
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post #10 of (permalink) Old 04-03-2004, 05:22 PM
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Re: lower control arm resting on bump stop

Correct, for OBS trucks. The yellow bumpstops on NBS trucks are meant to be part of the suspension and give it more or a progressive spring rate, which torsion bars alone don't provide.
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