Looking for a new Ford 8.8 IRS

[Jerry Clayton]

Brent

Have you used any of the SFI 427 Q/T housings???? We had the first one and some issues, wonder if they got the changes made to the production ones

Jerry

[priobe]

ok here it is from another calc.

3.27 = 2565 rpm - 60 mph
3.31 = 2600 rpm - 60 mph
3.55 = 2785 rpm - 60mph
3.73 = 2930 rpm - 60mph

[undy]

3.27 FMS gears for a 25" tire height and a Top Loader is the way to go. 3.08s will work too if you don't have much cam. They will will give you a nicer cruise RPM.

Dave

[wrench87]

call mike forte from forte's parts connection in framingham, ma he has the new cases and he sets them up with what ever gear and carrier you want. i remember when i bought mine fms was selling them for around 700.00 but they no longer sell them complete.