\'87 YJ.. What are my Trans/TC options??
I recently picked up an '87 YJ off of Ebay with tons of miles but an excellent 4.0 liter six and decent body/axles, frame, interior, etc. I just got finished with installing an extra leaf in the front to get it back up to a decent height, and I've got my Western lookalike plow frame almost all built and just need to install the plow pump assembly. The truck is to do backup snowplow work while my GMC gets a new transmission, and might be my daily driver once I have it sorted out. The carb is a little whacky at idle cold but as it warms up it is fine, altho it diesels when shut off.
Today's big problem is the transmission and transfer case. It is a five speed, and in fifth gear there is a rattle/tick that at first sounded like an exhaust shield but is definitely fifth gear related. Also, reverse needs to be held in or it will tend to pop out of gear. THe transfer case, while quiet when I picked up the jeep, now exhibits a clicking/ticking noise only when in four wheel drive, high or low. The speed seems to be much higher than driveshaft speed, so I don't think it is a universal joint going bad. In 2WD, 1-4 gear, it acts perfectly normal.
I wouldn't hesitate to tear into the gearboxes, but I have found in many instances replacement with a good used unit ends up being much less expensive. What are my options behind the 4.0 six? Is it possible to install a better unit from an earlier jeep in the place of these aluminum units that don't seem too strong for plowing? I am looking for a bolt on swap, without too much driveshaft work.
Any suggestions would be appreciated!please forgive my typos and long post!