2.9 trans on 4.0?

[94STXRanger]

Will a 2.9 4x4 5 speed transmission fit on my 4.0(94) 4x4 5 speed?
Thanks

 

[Woody88]

yes it will, I just went through asking the same question about mine.but i was told not to use th FM146 unless itw was freshley rebuilt and free, so u want a m5od-r1.

 

[metalmacguyver]

yes it will, I just went through asking the same question about mine.but i was told not to use th FM146 unless itw was freshley rebuilt and free, so u want a m5od-r1.

x2

 

[4x4junkie]

You don't ever want to put a FM146 behind a 4.0L, even IF it's free & rebuilt (that is unless you don't mind pulling it out again for a M5OD anyway a week later).


A 2.9L M5OD on the other hand, nothing to worry about, except that the gear ratios are a bit different (1st, 2nd & 3rd are deeper, 4th, 5th, & R is same). M5ODs on 2.9L 4x4s are not near as common as the FM146s though.

 

[MAKG]

Yup, that advice about the free and rebuilt FM146 was for 2.9Ls. An FM146 won't last long behind a 4.0L. Not that you'll ever find a free fresh rebuild of anything....

 

[1987 DANGER RANGER]

I take it that the Fm 146 is weaker then the Fm 145. Therefore the 145 prob not a good idea behind a 4.0

 

[MAKG]

If you can tell the difference between the two, I'd like to know.

The ONLY difference in the transmission itself is the overall length (slave cylinders and sticks are also different).