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Bumpstop Question

blazininthe73

blazininthe73

1/2 ton status
Joined
Feb 11, 2006
Posts
138
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Location
Oklahoma
I'm making up some bumpstop extenders for my blazer and I'm just wondering how everyone has theirs set. For my first mock up I have 5.125" of travel before I hit the bumpstop and 5.5" before my shock bottoms out. So that leaves me .375" of give in the bumpstop before the shock bottoms out. I have the 4.5" competition style bumpstops. Does this allow for enough compression before the shock bottoms out? The bumpstops seem pretty stiff but I have no idea how much they'll compress.

Here's a pic.
picture.php
 
I personally would probably give it a little more. I have the same bumpstops and though they seem very stiff when I try to compress them by hand, they seem to have a good bit of give to them when compressed by a 6000lb truck!
 
it needs to hit a lot earlier than that. All of those openings in the bumpstop will get compressed and then some. Not joking, unbolt a bumpstop and put it on your floor jack then lift a corner of the truck with it untill a second tire wants to lift, this will give you a good idea how far that little bugger will compress. I would leave an additional 1/2-1" of shock beyond that. I know that my daystar 4 1/2" bumps compressed 2 1/2" before they became rigid. Having the bumpstop be an integral part of the suspension movement also will soak up the big hits better and progressively slow you to a stop (less sudden jarring) compared to using a bumpstop strictly to prevent mechanical contact and slamming to a stop.
 
Blazinaire said:
it needs to hit a lot earlier than that. All of those openings in the bumpstop will get compressed and then some. Not joking, unbolt a bumpstop and put it on your floor jack then lift a corner of the truck with it untill a second tire wants to lift, this will give you a good idea how far that little bugger will compress. I would leave an additional 1/2-1" of shock beyond that. I know that my daystar 4 1/2" bumps compressed 2 1/2" before they became rigid. Having the bumpstop be an integral part of the suspension movement also will soak up the big hits better and progressively slow you to a stop (less sudden jarring) compared to using a bumpstop strictly to prevent mechanical contact and slamming to a stop.
Click to expand...

I made it so it has 2" of compression before the shocks bottom out. I'm going to get my skidsteer sometime and lift the tires to see if it works out. Thanks for the help.

picture.php
 
WOW!!! I knew they'd give a good bit but, I didn't realize they'd compress that much! I am glad we set mine up conservatively, we were thinking about more uptravel at the time but opted for less. Good catch finding that link bro! Thanks for posting it up! Good luck with you build! :waytogo:
 
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