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Aluminum control arm to steel
I know this might sound strange, but I want to take off my aluminum control arms and put steel one on. My current arms are wore out. I just replaced the ball joints and it still shakes. The aluminum was too badly wore. I don't have the money to buy new alum. arms so I want to replace them with steel arms. I am only using the car as a daily driver, no racing. I am pretty sure that the steel and alum. are interchangeable. Will all the bushings work from my alum. arms.
Thanks
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05-23-2010, 10:32 AM
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Join Date: Jul 2004
Location: Upstate New York
Posts: 3,261
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Yep, you will need new swaybar droplinks at the arm and the rear bracket that moves centerline to outside to adjust caster. This only works with 85/2 and 86 cars, since the 87+ offset means different dimensions for the control arms.
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Good luck, George Beuselinck |
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05-23-2010, 11:15 AM
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my stepdad went from ali to steel arms on hiis '86 n/a racecar with no problems. as long as your're early offset i think you should be fine. you might want moore detailed advise than this though. [edit]there you go!
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05-23-2010, 11:16 AM
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The 83 to 85 early steel control arms are basically the same in dimensions as the 85 late and 86. All of them were the early offset with mounting points/parts being same, if you use the steel A-Arm mounts. The difference is in the removable/replaceable ball joints on the early steel arms, with changeover aluminum arms the ball joints were not so easily replaced. Plus the early steel A-Arms were noticeably weaker than the aluminum A-Arms. For street only you may never notice the difference.
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05-23-2010, 12:30 PM
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the early arms are easy enough to seam weld for a bit of extra insurance but for a roadcar its not really necessary.
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https://www.instagram.com/kiwi944s3/ '86 944S3 conversion - '94 968 3.0 engine - 6 spd/LSD - 17x8,17x9 Oz Racing Crono wheels |
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05-23-2010, 12:51 PM
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Steel to Alum ? 85.5 arms on a 83?
If someone wants to use Aluminum 85/5 arms on an 83 what additional parts are necessary ? Mainly the sway bar drop links? Have to look into the camber adjuster mentioned. I had a guy looking to buy some used lower arms for his 83 but may be nice to upgrade since I have the 85.5 parts available 4 him.
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06-03-2010, 08:56 AM
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Join Date: Jul 2004
Location: Upstate New York
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There is no advantage to changing to aluminum control arms from steel. Except to the seller!
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Good luck, George Beuselinck |
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06-03-2010, 09:51 AM
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J1nx3d
J1nx3d2
ORACLE
