yrusoslow2

Someone just asked me if the transmission off of a 1986 ford diesel will fit on a 1989 ford diesel. I do not know much about the fords so any help would be greatly appreciated.

spots

u talkin E4OD or ZF?

yrusoslow2

Like I said I do not to much about fords but it is the manual trans. I take it that is the ZF.

spots

If they are both powerstroke and both 2wd or 4wd then I think they will fit. Best bet is to call a zf rebuilder and they will know the years that match.

boughtadodge

The 86 is a four speed while the 89 is a five speed you should be able to swap in the four speed but I think you will need to use the flywheel and clutch from the 86 with the four speed in 89 they used a dual mass flywheel and I am not sure if it will work with a four speed but the flywheel from a 6.9 will bolt right to a 7.3 you might want to check overall length as well the five speed might be longer requireing driveline changes. Matt

yrusoslow2

Thank you for the replies. I will call a rebuilder like you said and see what they say. Thanks again.

spots

sorry I was tired when I read this thread. Was a decade ahead of myself. E4OD came out in '88, an '86 would have a C6 tranny, also a 6.9 diesel, 7.3 IDI started in '88. I believe the old 4 speed "barnyard" trannys were cast iron, 2 piece bell housing. Don't know about the flywheel, but the '88 had a dual mass flywheel, expensive new, but with an old girl like that someone must have one kicking around. Also '86 to'89 is a different body style. Tranny hole might be in a different location in the floor (minor). Make sure both have a mechanical slave, as the newer Fords had a hydraulic external slave. (i believe '92 and up?) Firewalls crack on those old trucks due to the leverage on the clutch pedal also Sorry about the mixup in years

yrusoslow2

No worries about the mix up in years. I do that all the time. Thanks for the info though.