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1. Is there any specific rear end that I could get that would bolt in on my ‘66 F100 that would be an upgrade and give me the 5x4.5 lug pattern? Or possibly swapping out just the axles?
2. Does anyone have the part number for the rear leaf springs in a ‘66 F100?
dano you probably have a 9 inch with 28 spline axels in it 5x5 pattern?
if so a company called moser engineering will drill the 5x4.5 pattern in them and will fill the big hole in them if it has them for not to much money
mike
I’m seeing a lot of people installing the T-Bird IRS. My only question is what years will work?
I believe it starts in 88 till 1997. Also if you can find one with rear disc and a locker. The one I Installed in my 57 was out of a 93 cougar and it had disc brakes with a 3.08 locker 8.8 diff. I bough wheel adapters to go from 5x4.25 to 5x4.5 bolt pattern or you can install the Mustang Cobra wheel bearing and rotor to get 5x4.5 with no adapter. Team 321 makes a installation kit.