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#1 |
Registered User
Join Date: Jul 2012
Location: franklin.tn
Posts: 600
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69 control arms on 72
has anyone changed their upper and lower control arms from a 67-70 on to a 71 or72? I know the ball joints are different,but i read turning radius is a different. Has anyone noticed this?
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#2 |
Registered User
Join Date: Jul 2012
Location: franklin.tn
Posts: 600
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Re: 69 control arms on 72
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#3 |
member #16
![]() Join Date: Dec 1999
Location: Yuba City Ca.
Posts: 3,618
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Re: 69 control arms on 72
I have read in the past that disc spindles on drum control arms will alter your turning radius, but I have never compared the stops on the arms. The last set I did I used 72 spindles and arms.
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#4 |
Registered User
Join Date: Jul 2012
Location: franklin.tn
Posts: 600
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Re: 69 control arms on 72
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#5 |
Registered User
Join Date: Mar 2013
Location: Marquette michigan
Posts: 828
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Re: 69 control arms on 72
I changed my 68 c10 over to dics brakes from a 72, 2 1/2 drop spindles from ECE. Your turning radius is determined by how far the spindles can move in a turn. The steering stops are cast into and part of the spindles and don't adjust as some imports do. The stops hit the control arms. The only difference i could think of is if the control arms are a different width in the steering stops area. When i did my conversion i had the 72 control arms on top of my 68 control arms to compare and didn't see any difference except the ball joint stud diameter was different. it was 5 years ago when i converted, so i'm trying to remember for sure. If i was to do it all over again i would unbolt a complete crossmember out of an 87 and back truck and bolt it in, spindles, rotors, calipers, etc. A friend loved these 67-72 trucks and owned a body shop and would do the conversion along with the rearend to match up the five lug. That was a long time ago though so double check. Good luck.
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