Hey all! Just picked up a 1990 yj 4.2 off craigslist and you guessed it! ..there's a couple issues.
When I got it, the guy had the front driveshaft off because "it saved mpgs". Not sure how much truth that holds but regardless, grabbed a couple new u-joints and threw that sucker back in. Instantly noticed a major difference in drivability.
It vibrates a lot more, my top speed has dropped by quite a bit, won't roll in nuetral (if I'm driving and put it in nuetral it will come to a stop almost as if I'm in gear, and it takes quite a hill to make it roll. so it will, but it's noteasy) and feels as though when I turn and shift it's in 4 wheel drive.
I know next to nothing about cars so if you could put everything as simple as possible it would be greatly appreciated.
Here's some other things I picked up on...
My last yj's 4x4 was vaccuum actuated. where the vaccuum was on the last one, on the axel, the new one is sealed up with a plate.
Pretty sure it has rear lockers which I was not informed of on the purchase. (Any way to easily check?) Not sure about the front
The tranny grinds on a couple gears, and on e.v.e.r.y gear when downshifting. Not sure if that makes a difference with the transfer case.
After putting on the driveshaft I now smell my brakes burning.
Any info helps!
Even on the tranny grinding =p
Thanks in advance, forum gas always been super helpful!