So here's my story...I bought my 2002 TJ two yrs ago. About 3 weeks ago the rod broke in it. So I'm stuck with a car payment and no jeep. So sad! Anyways its a 2.5L...very slow! So since I am already getting ready to pay a HUGE repair bill I was thinking about throwing a 4.0 instead. Anyone tried this? Can it be done? I know there would need to be some huge modifications done. Would it be worth it?? I'm just curious. Any advice would be awesome. Thanks for reading.

I have an 02 2.5L too. You'd have to replace a lot of things that can't handle the 4.0 power without breaking. So while you're thinking about it, you can put any engine you want in there like a Chevy for example. I'm still curious about a Toyota engine because they're so reliable. The Land Cruiser's got 4-wheel drive.

While you can. If you just drive the truck on the road yea you can do it with a few extra adapters from advanced adapters and everything will bolt up. You might want to find a AX-15 tranny tho would make life a lot easier on the trans.

How hard is it to change the motor mounts when you do this?