orion :: SS Posted June 14, 2005 Report Share Posted June 14, 2005 (edited) Hey guys... I dunno about you, but since day 1 in my SS, I thought the rear felt VERY bouncy. I thought maybe the rear shocks were blown, but with less than 20,000 miles it was very unlikely - But I decided to pull one off today and check, and they are just fine. While I was underneath there, I noticed the bumpstop was REALLY close to the axle. I always assumed that the SS had a shorter bumpstop due the rear being 2" lower, so I checked the part # (15712438)...looks like the same part for ALL late model Silverados! So I decided to remove it, to see how the ride was... The first bump I hit made it clear that the rear was riding on the bumpstops WAY too much...the ride was SOOOoooo much smoother now. ...which makes sense: If you've ever lowered a car, you ALWAYS cut the bumpstops so the supension travel does not bottom out too early on the bumper. And if/when it does, it bounces uncontrolled, and makes the ride quite sh!tty... So I went ahead and cut ~1" off the bumpstop (I'd have loved to leave it off, but it's important to have some bumpstop, for REALLY big bumps). I must say, I'm happier with my truck now than ever...so much smoother. There's one road by my house with a lot of small bumps (think reverse speed bump, a rut all the way across the road) and before it was rediculous...you'd hit one, the rear would bounce 4-5 times, and you'd almost come off the seat. As soon as it settled, you'd hit another bump just like it! Well, I just drove that road, and it's 300 times better...takes the hit, settles...takes the next hit, settles...just smooth. Anyway, here's a quick how-to: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Jack up the rear of the truck...you don't have to remove the wheels: Reach over the tire and remove the bumpstop...there is only 1 15mm nut holding it on: (FYI, this pic was after I cut the bumpstop) Here's the bumpstop as it comes from GM: I cut it off at the crease, about 1" up from the bottom. This leaves plenty of material for big bumps (keeps the axle from bottoming out): Then reinstall...this is VERY easy, and fast. Took me 10 minutes to remove, cut, and reinstall both sides. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Anyway, I'd highly reccomend you try this, see if it helps your ride. If you think it's an utter failure (it may cause a little more 'sag' with a heavy load)...it's not a costly mistake...these bumpers are only $9 each from GM. Cheap. So, I hope that helps some fellow SSS'ers... Comments, flames, etc...all welcome. - Brian Edited June 14, 2005 by orion :: SS (see edit history) Quote Link to comment Share on other sites More sharing options...
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