FFR 1630 IRS Retrofit

July 2001

Begun 16 July 2001, Finished 3 August 2001


hwy1-1 donorstuff axles1 noaxle
hwy1-1 donorstuff axles1 noaxle
pumpkin1 noperch abigmess subframes1
pumpkin1 noperch abigmess subframes1
subframe3 subframein mockup mikespark
subframe3 subframein mockup mikespark
weld2 diffout diffin spindles
weld2 diffout diffin spindles
propvalve blines1 presway swaybars1
propvalve blines1 presway swaybars1
donebar frontbar
donebar frontbar

Sway Bars

Speedway Engineering Front: 1.25 hollow .095 wall 35 inch front bar with the alum arms custom bent.

Bar $100, Arms $37 each, D-block front $18.90 each (2), retainer $5.50 (2)
Rear: 42 inchs at .75 inch solid with alum arms custom bent. need to get mount/bushings

Heim joints www.summitracing.com

For the heims, use 2x 3/8 male, 2x 3/8 inch female for front, same for rear

Reference

Parts List

  • FFR kit
  • 89-91 Thunderbird SuperCoupe or Cougar supercharged rear end (8.8 pumpkin, 3:27 gears, 1.2" axles), including pumpkin, axles, nuts and bolts to hold pumpkin, spindles, brakes, rotors. Make sure rotors can be turned.
  • Brake pads
  • Shocks, koni double adjustable
  • TracLoc rebuild kit
  • Differential bushings, poly: Thunderbird IRS bushings - 2nd Source

Brake Lines

The part number for the SS/teflon brake lines (all 5) for the front and IRS is EAR-28B020 and the cost is $89.99 from Summit Racing.

Wayne's Afternoon Version

Pull your fuel tank and live axle, cut off the spring perches even with the 2x3, fit the lower frame and remove, paint the frame except where welding, install the pumpkin to the lower frame, install lower frame assembly and weld, install upper frame and weld, bolt up all the rest of the suspension.

Alignment

Front: 3 degrees neg camber, 4 degrees caster, zero toe
Rear: 1.5 neg camber and .25 inch toe-in

CV Boot Clamp

You need to get a special CV clamp tool.