Alright guys, first time posting but long time reader. I've got a 2002 Toyota Tacoma 3.4L, Manual, TRD.
Recently, I was out having a little too much fun mudding and running through puddles, (monsoon season out here in southern Utah. ) anyway, I've been noticing that when I start moving there is resistance somewhere in the driveline. It won't roll freely and takes extra RPM to start. I suspect its related to the rear axle but i'm not positive. However, after the initial start and at higher speeds, it isn't very noticeable and can be driven. But occassionally, while moving slowly (parking lot speeds) and right after tapping the brake the rear tires will lock up and stop a little too fast, resulting in skids in gravel, wheel hopping while rock crawling and skids on pavement.
The newest revelation I had was this morning, I had let my battery die and had to push start it, it was extremely difficult to push and it almost felt like the harder you pushed the more resistance you would get. however, if you stopped pushing, it almost seemed to bleed away the resistance and start to roll very slowly. Again, after it had the momentum and started moving it seemed to be fine, it was just the initial start that seems to give it difficulties.
I'm not very mechanically inclined but I can do basic repairs and I'm quite good at taking things apart (getting it back together? different story). I took the truck to the car wash and sprayed out most of the crud out of front and rear brakes and that seemed to help a little, but the issue is still clearly there. I've been contemplating taking the rear brake drums apart to see if there is anything blatantly wrong, but I thought I might get an opinion from any of you guys. A few things I suspect is maybe the rear diff breather valve? i understand that is a weak point in the system and maybe I got water in the differential? Its also possible that its something to do with the brakes, or maybe its a different animal all together.
And yes, I did check the parking brake, before anyone suggests that! haha, thanks for the help!