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Old 08-06-2014, 06:29 PM   #1
bob_o
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Front lower bump-stops

I'm running McGaughy's 2.5" dropped spindles with cut coils on my '75 1/2 ton and with all 4 tires sitting on the ground, I have about about .5" travel between the lower bump-stop and the frame. The bump-stop is mounted to a stamped steel bracket that appears to be welded to the lower control arm.

My question is, what are my options as far as getting some more travel? Remove the factory rubber stops and replace them with some low-profile polyurethane stops on top of the factory bracket? How hard is it to remove the steel mounting bracket from the lower control arm? Am I overthinking this and there is a super simple solution to this issue that I'm just not seeing (not including raising the truck back up )?

Any help would be much appreciated. Thanks guys!
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Old 08-06-2014, 07:23 PM   #2
SkinnyG
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Re: Front lower bump-stops

You could just trim the factory bumpstop.

Ideally, it's better to have the suspension bottom out before the tires hit the inner fenders or the chassis hits the ground.
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Old 08-06-2014, 08:32 PM   #3
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Re: Front lower bump-stops

Hmmm, ok. Maybe just leave about .5"-.75" of material?

The tires are rubbing the inner fenders a bit on bigger bumps, but fortunately it's not low enough to hit or drag the chassis or lower control arms on the ground. I plan on modifying the inner fenders in the next couple of weeks to deal with tire clearance.
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Old 08-06-2014, 08:51 PM   #4
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Re: Front lower bump-stops

If you're not physically feeling it hit the bump stops, I'd leave them.

On my previous vehicle, I cross-drilled the factory bumpstops so that they still hit just as early, but they were now softer, providing a more progressive bottoming.
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Old 08-06-2014, 09:49 PM   #5
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Re: Front lower bump-stops

cut the bump stop mount completely off the a arm. unless u plan on taking some sweet jumps. or drive like an idiot, then leave them
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Old 08-06-2014, 10:21 PM   #6
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Re: Front lower bump-stops

Quote:
Originally Posted by SkinnyG View Post
If you're not physically feeling it hit the bump stops, I'd leave them.

On my previous vehicle, I cross-drilled the factory bumpstops so that they still hit just as early, but they were now softer, providing a more progressive bottoming.
That's a pretty good idea, I'll give that a shot before I try anything else. Thanks man!

Quote:
Originally Posted by northeimcustom View Post
cut the bump stop mount completely off the a arm. unless u plan on taking some sweet jumps. or drive like an idiot, then leave them
I definitely don't drive like an idiot, been driving lowered cars and trucks for 15 years now. But anyone who drives something really low knows that A) Some gnarly stuff is simply unavoidable and B) Every now and then, you're not gonna see something until it's too late. I've made the mistake of removing bump-stops completely before. Now that I'm older and hopefully wiser, I like knowing I that have a couple of cushions between the big moving metal bits.

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Old 08-07-2014, 01:26 PM   #7
Malo83
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Re: Front lower bump-stops

I had the bump stops completely cut off when I had my 83 dropped, bottomed out once when I ran into a dip in a road I was not familiar with at night, other than that one time, no problems
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Old 08-07-2014, 06:36 PM   #8
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Re: Front lower bump-stops

I cut mine completely off. In retrospect may not have been the wisest idea. I plan on using the newer style progressive bumpstops instead. They talk about them here http://www.montecarloss.com/communit...&Number=342896
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