4th Gear Poster
Join Date: Apr 2006
Location: Ontario, Canada
Most aftermarket stuff if made recently has been changed to fit the irs. The FRPP stuff fits now too.
I just put in a FRPP Track-Lok unit (M-4204-F288) and it fits. I called FRPP and they confirmed this, and said the new stuff will fit IRS cars, but to look at the side gears to be sure as it may be old stock.
1994 Lincoln Mark VIII
4.6L DOHC; meter4it.com chase/sequential tail lights; 20" Giovanna Dalars; 4.30 gears; FRPP Track-Lok; SCT tuned; Baumann ReCal; Addco bars; Cobra brakes...
RIP - '86 Mark VII LSC