So I have wanted a jeep for quite a few years now and I finally bought one a couple of months back. It's a 1993 YJ with 136,000 miles on it. So far I've put in a new radiator, serpentine belt, changed one of the freeze plugs out and installed an engine block heater . I had to replace the windshield and when I cut it out I found some rust on the W/S frame so I fixed and painted that. I've put a new steering stabilizer on it, plugs, wires, cap, rotor button, air filter and heater hoses. I have changed the universal joints and upper and lower ball joints and even installed carpet. I have a center console coming sometime this week. I need to put some side bars on to help the family get in and out. After I do this I will search out some seat covers and a sound bar and radio and I think I will be done for a while. This is my first jeep and my first vehicle purchased with over 100,000 miles. I was a bit worried with that aspect of the buy but after reading how bullet proof the 4.0 is I decided to pull the trigger and give it a whirl. I've done body work for over 25 years so there's not much on the vehicle I'm afraid to tackle, repair wise (with exception of rebuilding a transmission but fortunately that seems okay for now) and I'm very happy with how easy everything is to work on so far. Next, I need to change all the fluids in the transmission, transfer case and differentials.
So I have been reading a bit about Royal Purple Synchromax on different forums and was wondering if anyone here has put this stuff in their YJ's manual transmission? Is it okay to put in tranny and transfer case? Has anyone on here done this and how many qts. did it take? There is nothing wrong with my Transmission I just don't know if or when the previous owner changed the fluids and want to start with a clean starting point. I know when I changed the oil it looked like it had been run a loooong time.
I work out of my house now so I don't drive this a lot but never the less it is my daily driver. Anyone think of anything else I should take a look at to make sure it is a dependable vehicle for the Winter? I live in the Colorado Mtns. and the snow can get deep here. We didn't have 4-wheel drive last year and we are excited to have a capable vehicle this winter.
Thanks for any suggestions.