Tranny Question

[pacman99]

What tranny is in a 94 PSD, 4x4, with a 5 Speed. Found a nice one w 129k, new clutch batteries and wiper motor and swith, new glow plugs. My concern is how good is the 5 Speed, heard some came with gertag, along with some doges with the cummins and they are not deirable?

Thanks,

Don

[JSchuricht]

It's a ZF5, a 94 will likely have the weaker version but that's only a issue if you start adding a bunch of power. Toss in a good clutch and solid flywheel and you'll be good to go.

[Patrick Feeley]

The tranny in a 94 will be a ZF S5-42. It's actually a pretty stout, reliable unit. My original went almost 250k miles until I replaced it with a ZF-factory reman. The synchros in the original were toast after having 3 slave cylinder failures (I don't care what people say, these trannies don't like to be shifted without the clutch or speed shifting). As mentioned above, the real weakness is the factory Dual Mass FlyWheel/Clutch setup. Cheers!

[madpogue]

^^^^^^ +1; convert to single-mass, keep it filled with SYNTHETIC ATF (synth is required in these trannies when mounted behind a diesel), don't speed-shift it and it'll keep you happy.

I've never heard of a Getrag in a recent Ford diesel pickup. The old 4-speeds were Borg T19s, ours have the ZF5 (42, followed by 47), and the Sooper Doo-doos have one or another ZF6.