400 engine tranny combos
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400 engine tranny combos
Hey yeall I have a 1978 Ford f250 supercab 4x4 with 400 engine with 3speed auto tranny . would like to swap out tranny for manual, ideally more like a 4 or 5 speed. Was wondering what options I have if any? And what kinda costs I'm looking at ? And how big of a project/pain in butt to do ? Any help I'd be thankful to yeall .
Postmaster
Joined: Nov 2011
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The NP235 is a great and tough transmission. It is used successfully in MD trucks >20k lbs. 1'st is a non syncro creeper gear to help get rolling with heavy load or trailer. Or for running slow over rough ground. Running light, you would normally start out in 2'nd and it is functionally a 3 speed with pretty wide gear spreads. Some love it, some don't. I had one outlast 2 rebuilt engines and never opened up.
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Will ether the np435 or zf5 bolt up directly with the set up I have ? I know yeall said needs some fab is needed but is that just meaning the clutch pedal and shifter spot or is that to get the tranny to bolt up as well ?
Elder User
Joined: Jul 2015
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From: CT
The trans will bolt up. You need a flywheel adapter and its a hydraulic clutch
ZF5 adapter kit
I don't have a link but there is a ZF5 swap in the dent forum
ZF5 adapter kit
I don't have a link but there is a ZF5 swap in the dent forum
Mountain Pass
Joined: Feb 2003
Posts: 185
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From: Fargo
Any transmission that will bolt up to a 429 or 460 will bolt up to a 400.
So if you are having trouble finding a 400 trans, try one of the 385 blocks.
So if you are having trouble finding a 400 trans, try one of the 385 blocks.
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So it'll bolt up and will have to get creative with clutch and shifter linkage and all...but what about matching it up to keep 4x4 because autos are usually longer so will I have to change drive shaft and transfer cases and or any of the 4x4 linkages ?
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