blueovalxfboy

hey guys i hav an xf ghia with a 4.1 250 xflow EFI and i hav done the 5 speed conversion to it and still have the factory 2.77 LSD and it is just crap with the 5 speed so i was just wondering wat diff i should us or what u guys would recommend keeping in mind i would like to stay with the LSD

BLO GMH

3.45 LSD, 28 spline, 4 pinion.....in other words - get an EF/L XR diff.

__________________
- BLO GMH

-> 1987 XF Fairmont Ghia - Silver, 4.1 EFI, T5, LPG, Clive Cam, Megatork Valve Springs, Crow Pushrods, Crow Timing Gears, Pacemaker Headers, Hi Flow Cat, Mandrel Bent Exhaust, ESA Straight Through Muffler, Grey Velour Interior, Full Electrics, Trip Computer, MOMO Race Wheel, King Spring Super Lows, Monroe GT Gas Shocks, Nolathane Bushes, EL XR8 Rear Axle w/ 3.45 LSD, Snowflakes

blueovalxfboy

can u just rip the old diff out and fit the new diff in disc to disc or do u hav to re drill holes etc for it to fit

BLO GMH

i'm sure i've told you this before. no need to redrill holes just swap them over but change the yokes, lower control arm bushes, handbrake setup and wheel nuts!

__________________
- BLO GMH

-> 1987 XF Fairmont Ghia - Silver, 4.1 EFI, T5, LPG, Clive Cam, Megatork Valve Springs, Crow Pushrods, Crow Timing Gears, Pacemaker Headers, Hi Flow Cat, Mandrel Bent Exhaust, ESA Straight Through Muffler, Grey Velour Interior, Full Electrics, Trip Computer, MOMO Race Wheel, King Spring Super Lows, Monroe GT Gas Shocks, Nolathane Bushes, EL XR8 Rear Axle w/ 3.45 LSD, Snowflakes

blueovalxfboy

ok i get wheel nuts, and i take it u just hav to adjust the handbrake cable to length, y do u need to change the lower control arm bushes and wat are the yokes

BLO GMH

the handbrake setup is completely different and i haven't worked out how to do it yet on mine (i still have no handbrake), the lower control arm bushes on the EF/L are wider than the XF ones at the diff end - just buy the two bushes needed and then get the xf ones pressed out and the EF/L ones pressed in to the xf arms. the yoke is the part that sticks out from the diff that the tailshaft bolts into. the EF/L one is different again so i used the XF one on the EF/L diff.

__________________
- BLO GMH

-> 1987 XF Fairmont Ghia - Silver, 4.1 EFI, T5, LPG, Clive Cam, Megatork Valve Springs, Crow Pushrods, Crow Timing Gears, Pacemaker Headers, Hi Flow Cat, Mandrel Bent Exhaust, ESA Straight Through Muffler, Grey Velour Interior, Full Electrics, Trip Computer, MOMO Race Wheel, King Spring Super Lows, Monroe GT Gas Shocks, Nolathane Bushes, EL XR8 Rear Axle w/ 3.45 LSD, Snowflakes