Lower control arm installation - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**FL71C10** · 09-08-2011, 04:28 PM

When you re-install your lower control arms, how do you know where to line the CA as far as the little u-bolts go. Is there only one way they can be installed? I'm concerned I won't know how far back or forward to put them.

biggestjohn · 09-08-2011, 04:46 PM

I set mine to the wheel base (133" on my longhorn) I used a c-clamp to hold the tape measure, then set to the centerline of the lower ball joint. Don't forget to subtract half of the diameter of the rear axle tube.

eightbanger · 09-08-2011, 05:09 PM

It should have a small indent on the CA shaft (see pic) that in turn locates on a nipple on the underside of the crossmember, then just tighten up your u-bolts, and provided your shaft is centered on the CA thats all you need to do.

gcburdic · 09-09-2011, 03:53 PM

eightbanger is right on the money!!!

**FL71C10** · 09-11-2011, 07:45 AM

Thanks, guys!!

09-08-2011, 04:28 PM	#1
FL71C10 Senior Member Join Date: Jun 2010 Location: Orlando, Florida Posts: 2,509	Lower control arm installation When you re-install your lower control arms, how do you know where to line the CA as far as the little u-bolts go. Is there only one way they can be installed? I'm concerned I won't know how far back or forward to put them. __________________ 71 Chevy C10 Shortbed Stepside. LT1 with 4l60E. Just got back from painter, in assembly now.

09-08-2011, 04:46 PM	#2
biggestjohn Registered User Join Date: Apr 2010 Location: Russiaville Posts: 203	Re: Lower control arm installation I set mine to the wheel base (133" on my longhorn) I used a c-clamp to hold the tape measure, then set to the centerline of the lower ball joint. Don't forget to subtract half of the diameter of the rear axle tube.

09-08-2011, 05:09 PM	#3
eightbanger 454 MAKES IT ROAR Join Date: Jan 2008 Location: Essex, U.K Posts: 2,701	Re: Lower control arm installation It should have a small indent on the CA shaft (see pic) that in turn locates on a nipple on the underside of the crossmember, then just tighten up your u-bolts, and provided your shaft is centered on the CA thats all you need to do. Attached Images __________________ Nigel. An American living in a British body. 1971 Chevy Cheyenne 10 454 "In a time of universal deceit, telling the truth becomes a revolutionary act." - George Orwell "When injustice becomes law, resistance becomes duty" - Thomas Jefferson No more pain. 03.12.60 -- 12.28.10 http://www.youtube.com/Eightbanger

09-09-2011, 03:53 PM	#4
gcburdic Restoration Virgin! Join Date: Jan 2008 Location: Huntersville, NC Posts: 8,298	Re: Lower control arm installation eightbanger is right on the money!!! __________________ Geoff with a G 1968 Chevy C10 SWB The Mistress 1972 Custom Deluxe C20 Suburban A Suburban Named Isabella 1966 Ford Mustang Mama's High School Graduation Present

09-11-2011, 07:45 AM	#5
FL71C10 Senior Member Join Date: Jun 2010 Location: Orlando, Florida Posts: 2,509	Re: Lower control arm installation Thanks, guys!! __________________ 71 Chevy C10 Shortbed Stepside. LT1 with 4l60E. Just got back from painter, in assembly now.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.