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Looking for someone on here with a 4BT/ZF in their EB

TPTFPS68

Full Member
Joined
Apr 23, 2005
Messages
405
Loc.
Mexico, Mo
Anyone on here that has done a 4BT with a zf 5 speed in their bronco?
I'm in the planning stages and have some questions.
 

Bronco Biff

Sr. Member
Joined
Dec 20, 2006
Messages
934
r36130 has one. Hasn't been on since March though. Latest endeavor was widening the frame and adding 1 tons............
 

Broncobowsher

Total hack
Joined
Jun 4, 2002
Messages
35,701
Probably be easier to do a NV4500 and use the Dodge 6BT bellhousing and transmission. All easy(ish) to find, off the shelf parts.
 

JB Fab

Sponsor/Vendor
Bronco Guru
Joined
Mar 21, 2004
Messages
1,340
Probably be easier to do a NV4500 and use the Dodge 6BT bellhousing and transmission. All easy(ish) to find, off the shelf parts.

We have two Broncos with 4BTAAs and ZF 5-S42.
One of them is on its 3rd ZF!
Not again, next time it will be a NV4500.......

If you build a 4Bt, to say 400hp (for round numbers) you have two power pulses of 100hp per revolution. That is a major shock-load for any tranny. that is a shock load not seen in engines with more cylinders.


My 2c,

Jon
 
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