Front wheel locking up when put in reverse

[snakedoc67]

Just started driving the MJ after two years of it being off the road. It was running fine and I was starting to put it to work again but it started acting up when I put it in reverse. 

Start of the problem occurred when I drove it a short distance with the parking brake on, since the light is on continously (wiring to the parking brake is not connected) I did a stupid and forgot to release it. When I would try to back up, it would take high revs, and the truck would only travel about half a foot before it would stop moving, and would feel like one or more wheels were locking up. Forward movement seems to be fine, I had to have it towed home for a separate issue and it is now in my driveway. I jacked up each rear tire individually to see if the parking brakes had locked up, I made a small adjustment to the right rear adjuster to back it off slightly but made no change on the drivers side. Both wheels did turn freely on their own although there is marks on the driveway that suggest the right rear was not turning at first and it would lock up at first when i turned it by hand backwards. Today I had an observer watch the passenger side as I tried to back up, both wheels were turning. Front left wheel is locking up after a few inches of travel and is then dragged if I go any further. 

 

the truck is parked on a steep slope so have not jacked up all four tires yet, that will be done tomorrow as well as taking the front wheels off to look at the brakes. Also, another symptom is the truck will not roll backwards on the slope when all braking devices are released- parking brake is off, foot is off the pedal, transmission in N and no difference if the transfer case is in any slot. 

 

Looking for any advice or links to writeups on here. Not really sure what to put in the search box. lol. I have not done the CAD repairs yet and will be looking at the CAD as well.  I need to get the MJ back on the road preferably by the end of the week as the main vehicle here just tossed a timing belt (we think) and wonder what short term fixes might be available. In the humble opinions of the brains on here, would removing the front driveshaft be enough to unlock the front axle and allow me 2wd until it can be fixed or replaced? 

[Eagle]

Looking for any advice or links to writeups on here. Not really sure what to put in the search box. lol. I have not done the CAD repairs yet and will be looking at the CAD as well.  I need to get the MJ back on the road preferably by the end of the week as the main vehicle here just tossed a timing belt (we think) and wonder what short term fixes might be available. In the humble opinions of the brains on here, would removing the front driveshaft be enough to unlock the front axle and allow me 2wd until it can be fixed or replaced? 

 

That depends on whether the problem is in the transfer case, or in the differential or left front brakes. My first thought would be to pull the front wheel and inspect the caliper.