Join Date: Dec 2004
Location: Grand Haven, MI
ditch those boxed upper arms fast! Those are not what you want! I would also get rid of the boxed lower arms and go with a set of MM tubular arms with a 3-peice bushing or hiem joints on both ends. Being boxed, they are probably using a one peice bushing in both ends. Another no-no for the rear.
I used an 1984 narrow k-member with 03 Cobra arms and 03 Mach 1 spindles along with a set of 245/45ZR17 tires. I widened the fenders because the wheel stuck out, otherwise everything fit just fine. The inner fenders were tossed a long time ago, so no rubbing there. Make sure you get a bumpsteer kit for the tie rods to help dial in the front suspension with the mix-matched front parts.
I would just stick with the urethane front arm bushings, and address some of the other concerns with your suspension first. Spring rates, dampers, control arms, bumpsteer, alignment, and chassis stiffening should be at the top of your list. Fancy bushings should be last. When you are at that point, you will be ready for a proper k-member and arms.
1984 White Mustang T-Top Auto-x/HPDE
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for my Mustang build and racing info
2011 White Fiesta SES Hatch
Ex-Ford Fiesta Movement Agent and Expert