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This is how I made a rear upper adjustable control arm.
Tools needed:Metal lath
14/2.0mm tap and drill bit
3/4'' by 16nf tap and drill bit
Hardware needed (x2)7/8 by 14'' cold rolled round stock
14mm by 2.0mm heim joint
14mm lock nut
3/4 heim joint and 3/4 lock nut
1 1/2 cold roll round stock
3/4 by 3'' bolt and lock nut.
- Take the 7/8 stock cut it to 14'' and face it.
- Next drill and tap one end for the 14mm heim joint.
- On the other side, drill and tap 3/4''.
- For the spacers, I took 1 1/2" stock, drilled the center to 9/16 and cut four 3/4” length pieces on a bandsaw. I chucked the pieces on the lath and cut it to .620''. For the final I cut a tapered them at 45*.
- To install the arms, you will need to drill the trailing arm with a 3/4 drill bit. The frame side bolts in with factory hardware. Install the new control arm in on the same side of the trailing arm that the ball joint entered previously.
Making a rear upper adjustable control arm
