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Interchangeable parts between 2.9 and 4.0 engines


Pbheadshots

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I'm looking to swap the 2.9 out cause its the devil, what parts would be interchangable on the motors?
 


country0001

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None. You will want the thicker 4.0 radiator. The 4.0 tranny. But all the other stuff will not interchange
 

Pbheadshots

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alwaysFlOoReD

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IIRC Exhaust manifolds swap according to plumcrazy.

Richard
 

country0001

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The alts arent the same, you might get by with a pulley swap on the powersteeringpump, but what are you wanting to exchange?
 

Pbheadshots

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I was planning on keeping my original transmission and transfer case and radiator, honestly I'm factoring in the cost for the swap.
 

alwaysFlOoReD

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I haven't mixed and matched parts personally, but from reading through the forums and tech section [hint], it seems the tranny can be used with the right mix.
The rad probably could be used if in good shape.
The exhaust manifolds, or headers, could be used but there will be cut and weld on the y-pipe or source the correct one.
Alternator wiring, the wire ends can be swapped for the correct ones with a little thought and /or research.
It seems the hardest part is combining the two wiring harnesses, as there is differences.
Good luck,

Richard
 

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