Gents,

I'm looking for the differences in the various ZF5 transmissions (4WD).

I'm familiar with chevrolets, where you only need a different bellhousing/flywheel to switch from small block to big block.

Are the ZF5 transmissions themselves different between SB and BB?

Or will I only need a bell housing to fit my motor?

Are there a bunch of different sized input shafts?

Any major differences between transmissions that fit behind gas and diesel?

Thanks in advance

Check out page 3 of this chart
http://www.zf.com/na/content/media/united_states/corporate_replacement_parts_1/service_portfolio/lcv/Part_Number_Progression_Charts.pdf

Small block are internal slave, wide ratio.

Big block gas is external slave wide ratio

Diesel is external slave close ratio.

All different bolt patters/ starter position.

96 they got internal upgrades and name change to ZF47.

If you find a small block 4x4 trans I.M. me. Ive been looking for years.

The one I had was behind a 351 Windsor in a 2wd and had an internal slave.  Tough Transmission. I

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Thanks guys. I ended up going with an NP435, I bought an entire donor truck today to do a swap. Gas mileage will suck, but 6.68:1 is no joke.

Donor truck - 86 F250, 351 / NP435 / BW1345.

Not sure the axle ratio, if it's 4.10/4.11 I may keep the 10.25 for a later swap.



I'm really excited about getting the pedal assembly, crossmember, linkage, floorpan, etc all in one shot.

Only thing I'll need is a big block bell housing, a 460 flywheel, and a clutch kit.

Oh, and time



This is going into my 91 F350 crew cab, 460. Currently there's an E4OD / BW 1356.

Any tips on which transfer case to use when I reassemble everything? From what I can tell, the 1356 is marginally stronger, but doesn't have quite the low range.

That's gonna be a hoss.

With the 460's torque a wide ratio isn't really necessary, but I don't think you get that nice low reverse gear that's so good for backing trailers with a 445.