89 XJ Renix to 94 YJ HO

Hey guys,

First post here on . I have an 89 XJ with an overheated Renix. I also have a donated 4.0 HO from a YJ that had an LT 350 installed. I am good friends with the owner of the YJ, got everything, harness, computer and AX10/ transfercase with SYE.

Now for the gorry stuff. What am I looking at for the swap? would it be easier to keep the Renix electronix and go from there? or gut the whole engine bay, lay in the new motor/tranny and reuse the harness from the wrangler?

Any tips/ info is greatly appreciated. TIA. Jeff

head and block will bolt in place, but still need to change out water pump and acc brackets for the XJ. re use the intake and injection and leave the wiring alone. Simplest and less annoying way to get you up and rolling again.

MiNi Beast said:

head and block will bolt in place, but still need to change out water pump and acc brackets for the XJ. re use the intake and injection and leave the wiring alone. Simplest and less annoying way to get you up and rolling again.

Click to expand...

Transfer your intake and exhaust manifolds using the Renix gasket. Use your flywheel and distributor as well as all sensors. Good to go.

cruiser54 said:

Transfer your intake and exhaust manifolds using the Renix gasket. Use your flywheel and distributor as well as all sensors. Good to go.

Click to expand...

This is the way to go.