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Rear coilover lower mounts

Guest Anonymous

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Guest Anonymous

Jeremy at Ireland Engineering said they've raced a few

without reinforcing, but strongly recommends you do it

anyway. I did, and now feel it would make sense doing the

same the other end, ie on the inner arch.

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Guest Anonymous

assembly is fully supported. I'm completing this at the moment. My shocks are Carrera and use a ball joint (also called a heim joint) at the bottom rather than a rubber bushing. By removing the ball joint's sleeve I'm able to use a 1/2" shoulder bolt to pass through and support the bottom of the shock/coil assembly. Regarding the top, the flat area at the top of the tower is reinforced already - has an extra flat piece of metal attached to it - so I'm just going to use fender washers (automotive quality) in conjunction with urethane upper shock bushings.

The bottom requires quite a bit of modification. First the existing stud is removed from where it mounts and a hardened 3/8" flange nut is welded to the inside surface where the stud previously came out of its support and held the shock. Then another "ear" is fabricated, (with a 1/2" hole to accept the previously mentioned shoulder bolt), and welded to the swing arm so that it's parallel to the plate that the 3/8" flange nut is now welded to. The 1/2" shoulder bolt (I used 18-8 stainless steel for everything except the hardened flange bolt that's welded where the stud used to be) has a 5/8" long 3/8" threaded end which screws into the flange nut. I made SS spacers with 1/2" I.D. and 3/4" O.D. (in various lengths) to capture the ball joint but still allow the shock's housing to move free on the ball joint. The shoulder bolts I'm using are long enough that I'm able to move the bottom of the rear shock inward a little to allow more clearance for the inside of the rear tires - this is accomplished by varying the length of the ss spacers that capture the ball joint at the bottom of the shock.

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