Front end of my GMC k1500 bounces real bad.

KDWHELAN

MEMBER
1993 GMC SIERRA
160,000 MILES

I put in new leveling kit in. The torsion key one. I also put new rancho 1-4 inch lift shocks in front. The frontend bounces real bad and when I hit anykind of bump hole or what ever it seems like I hit a monster hole or bump. I had to run my torsion bars pretty high to level out. You think mabie there two high and if so what can I do to keep the lift hight and lower keys/

Saturday, February 4th, 2012 AT 1:57 AM

6 Replies

ASEMASTER6371

MECHANIC
52,796 POSTS

There may be no happy medium for this. Did you change the pitman arm to compensate for the lift kit?

Roy

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Saturday, February 4th, 2012 AT 2:16 AM

KDWHELAN

MEMBER
8 POSTS

Know should I and what would I need to get exactly.

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Saturday, February 4th, 2012 AT 2:17 AM

ASEMASTER6371

MECHANIC
52,796 POSTS

When you lift the truck, the entire geometry has changed. You need to check with the company that provided you the kit and get the correct pitman arm for the lift. Get it installed and aligned and it should be better, not perfect but better. Lifting these units will always result in handling issues when you vary away from original specs.

Roy

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Saturday, February 4th, 2012 AT 2:52 AM

KDWHELAN

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8 POSTS

Ok thanks I will do that.

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Saturday, February 4th, 2012 AT 2:59 AM

KDWHELAN

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8 POSTS

I bought them off ebay. Where could I look for some? Are they made for lifted trucks? What about control arms?

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Saturday, February 4th, 2012 AT 4:05 AM

JMCDANIEL

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1 POST

The front end of a stock k1500 uses the rubber bump stops as some of the suspension. A stock truck at ride height will already be touching the stops. They sell extenders

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Tuesday, February 7th, 2012 AT 4:01 AM