ZF5spd to a 4 spd problems

[bigblockfever]

I had a question about this transmission swap. We pulled the truck into the shop everything running but the zf. Pulled the zf and the bw 1356 out of the truck. Swapped in a 4spd (i forget if it was the t18 or the t19)and bw 1345. Would the flywheel and the clutch work from the zf to the 4 spd transmissions. If it won't then i think that is where we went wrong. Thanks.

truck is a 1987 ford f250 single cab. Has a 7.3l. Swapped out the 6.9 ages ago with the 4 spd.

 

[IDIoit]

nope, a ZF flywheel is bigger than the T-19.
wont clear the bell housing

 

[bigblockfever]

thanks

 

[Shadetreemechanic]

spline count is also different on the input shaft.

 

[franklin2]

Someone said the zf bell is deeper than the 4 speed bell. So the flywheel, and complete clutch will not work.

 

[IDIBRONCO]

The input shaft on the ZF5 is bigger in diameter too. Yours may not engage the clutch plate fully enough and slip.