1971 C10 Lower control arm install question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1971gophercatcher · 06-09-2019, 11:22 PM

C10 Nation!

I rebuilding the entire stock front end. Rebuilt upper and lower control arms including shaft assemblies. I have installed both lowers and lined up the rivets with the forward divots on the shaft assembly.

After installation I noticed that there is 1/2” difference between the two lower control arms in relation to the crossmember. Is this a problem? If so, what is the solution.

Please see pic’s.

**Grumpy old man** · 06-10-2019, 09:44 AM

I'm not sure if there is a difference between your 71 and my 67 lowers ? measuring mine they are 4" to the base of the "nut" these are Moog shafts and bearings . Hard to tell where your measuring from ? Are you using the 9/16 ubolts ? Ignore the dust

**MDPotter** · 06-10-2019, 10:32 AM

See post #87, this may answer your question: http://67-72chevytrucks.com/vboard/s...=737560&page=4

1971gophercatcher · 06-12-2019, 11:44 PM

Thanks everyone for your help. Upon further investigation I received two different shaft assemblies that were causing the 1/2” difference. The numbers on the boxes matched but one of the shafts was definitely not the right one. Parts store messed up and they are exchanging for the right one.

Lesson learned: The parts in a box do not always match what is labeled on the box. Double check part numbers on everything before install!

06-09-2019, 11:22 PM	#1
1971gophercatcher Registered User Join Date: Aug 2015 Location: Bullard, Texas Posts: 12	1971 C10 Lower control arm install question C10 Nation! I rebuilding the entire stock front end. Rebuilt upper and lower control arms including shaft assemblies. I have installed both lowers and lined up the rivets with the forward divots on the shaft assembly. After installation I noticed that there is 1/2” difference between the two lower control arms in relation to the crossmember. Is this a problem? If so, what is the solution. Please see pic’s. Attached Images

06-10-2019, 09:44 AM	#2
Grumpy old man Senior Member Join Date: Dec 2013 Location: Gods country East,Tn Posts: 8,545	Re: 1971 C10 Lower control arm install question I'm not sure if there is a difference between your 71 and my 67 lowers ? measuring mine they are 4" to the base of the "nut" these are Moog shafts and bearings . Hard to tell where your measuring from ? Are you using the 9/16 ubolts ? Ignore the dust Attached Images __________________ 1967 Factory short bed - Old school '71 - 350 / 4bolt / 487 heads / Edelbrock C3BX Muncie M-22 4 speed / Hurst Comp plus Factory 12 bolt posi 3.73 / 255-70-15 Smoothed firewall / Factory cowl induction Power disc brakes / power steering / 3.5-5" drop

06-10-2019, 10:32 AM	#3
MDPotter Senior Member Join Date: Aug 2018 Location: Western Colorado Posts: 1,165	Re: 1971 C10 Lower control arm install question See post #87, this may answer your question: http://67-72chevytrucks.com/vboard/s...=737560&page=4 __________________ 1964 Chevy C10 - Gen IV 5.3 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=768632 1968 GMC C15 - Gen III 6.0 Restomod http://67-72chevytrucks.com/vboard/s...d.php?t=772047 1969 Chevy C10 - Restoration http://67-72chevytrucks.com/vboard/s...d.php?t=809184 1978 Chevy Scottsdale K20 1993 Chevy C1500 - 5.3/T56 swapped 2008 Silverado Duramax

06-12-2019, 11:44 PM	#4
1971gophercatcher Registered User Join Date: Aug 2015 Location: Bullard, Texas Posts: 12	Re: 1971 C10 Lower control arm install question Thanks everyone for your help. Upon further investigation I received two different shaft assemblies that were causing the 1/2” difference. The numbers on the boxes matched but one of the shafts was definitely not the right one. Parts store messed up and they are exchanging for the right one. Lesson learned: The parts in a box do not always match what is labeled on the box. Double check part numbers on everything before install!



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