Originally Posted by Yankee

My Rubi suspension and power steering are still working fine after near 60k of abuse. Little sag but probably as much to do with steel bumpers and winch as engine and tranny. Still using the original stock driveshafts. Cannot believe the rear shaft (and the pinion angle did increase with the conversion) is still intact. But YMMV as I am still stock on tires and suspension.

Sure you can install without a kit. However, if I were to again put in a Hemi or LS I would still buy a kit again and be done with the hassle. If my budget was that tight personally I would just not do it at all. The pre-configured lines, harness, computer, etc are just too sweet and greatly decrease the likelihood of codes and problems.

Guess it depends on how much time and stress one wants to spend sorting problems out instead of driving. For some people the Jeep is their DD and work/family does not allow the time.

All that said, I have great respect for the OP's efforts (and steel nerves) to do that 3.6 swap.

Originally Posted by Invest2m4

Right, I'm saying you buy the computer, wiring harness, motor mounts, radiator and fan from JSS. Reality is that for me, the rest of the kit won't work in my Jeep. I flat bellied it, so I have to build my own transmission mount. Air filter can't go where they put it as I have strut towers than run up to the hood. Battery and fuse box are relocated with my custom mount due to that as well. I mean, just about every mount in my Jeep is custom and made by me. There is no magic to the rest of the kit they sell. I see no reason to pay $3k for stuff that can be made for $100 and improved on. Why not gain 3" of belly clearance just by making a simple design change to the trans mount? At least for me, that ground clearance makes a huge difference wheeling in the rocks.

Originally Posted by Saharacon

So which is better bet (cost & effort, as well as fuel economy & power): 3.6 with Supercharger, Hemi, or LS swap? Similar power outputs.
I would be interested to know from those who have done it.

As for posting documentation on wiring for my project, I have it mostly finished. I still need to include the details about connectors I needed to add (for brake booster and AC transducer). I can post it incomplete and update, or I can wait until its done. Opinions?

Originally Posted by Saharacon

So which is better bet (cost & effort, as well as fuel economy & power): 3.6 with Supercharger, Hemi, or LS swap? Similar power outputs.
I would be interested to know from those who have done it.

As for posting documentation on wiring for my project, I have it mostly finished. I still need to include the details about connectors I needed to add (for brake booster and AC transducer). I can post it incomplete and update, or I can wait until its done. Opinions?

Originally Posted by Elusive

I've had a supercharged 3.8 and I have a hemi.
the power outputs are NOT similar.
I live in a mountainous area. the 3.8 used to be spinning at redline the whole time on the freeway with any incline. The hemi rarely downshifts. there's no comparison in real world applications.

Originally Posted by Elusive

I've had a supercharged 3.8 and I have a hemi.
the power outputs are NOT similar.
I live in a mountainous area. the 3.8 used to be spinning at redline the whole time on the freeway with any incline. The hemi rarely downshifts. there's no comparison in real world applications.