So, I broke something again. Problem is I don't know what. it started after a night of light wheeling. Rough trails to get to the fire pit where everyone was hanging out, nothing i needed to put it in 4wd for. After that, I did a hill climb - walked right up it in low with almost no tire spin.
So, this kid I know with a 4 door jeep on 35's says he did it in reverse. So I channel my Barney Stinson and say, "Challenge Accepted." I made it up the hill no problem, it as bouncy and i self-clearanced a couple fenders with the TSL's. Not surprised for soft springs and no actual trimming done as of yet.
After that, my buddy with a k20 on one tons and 39.5x18 boggers decides he's going to try a mud pit we call Florida. It's deep, about 50-60 feet to the other side, and the last kid that tried to cross it was in a stock v8 AWD grand cherokee (i think it's a wj?). He bombed down the hill at about 30 and launched, LAUNCHED the thing into the mud and landed nose first.
But back to the main point. That night I was the recovery vehicle. I had to yank my friend out 4 or 5 times as he's not a quitter - once i yanked so hard on my d ring so hard I spun the truck 45 degrees in place when the strap pulled taut.
So, now when i put the truck in reverse it 'bucks'. It seems more like a sputter, and only when i give it some throttle. Idling back is no problem, it just rolls with the little force getting put to the wheels. This in 2hi. 2low seems to be perfectly fine - powers through it and will spin the tires. that's how I need to back it into any spot which requires me to turn the wheels a decent amount and therefore bind up the rolling action of the vehicle.
I was testing this out on dirt and pavement and it will not do it in forward gears, loaded up or not. If I give it too much pedal it'll stutter a few times then backfire and die most of the time it seems. It also seems to only happen in rwd, as I tried to test it out in fwd and couldn't see any problems except that the spartan locker is TERRIFYING to drive on the pavement in fwd.
Also my detroit is probably busted. Burnouts in dirt while testing made a big pile behind the driver's tire and barely anything behind pass. tire. confirmed by doing a burnout in the street and had my buddy watch the tires - one would spin, then the other, and back and forth kind of like the locker that's in my dad's 2008 gmc (g80?).
Could a busted detroit cause the reverse stuttering symptoms? I just had the trans rebuilt after I broke it in that big ass snow storm the northeast got whacked with. the detroit has only been driven on since august, so it failing is kind of a surprise. I don't even know where to start.
OH, and I was romping on it after the wheeling trip the next day keeping up with my buddy in his cummins and it backfired at speed - scared the hell out of me. I think the culprit was a cracked vacuum cap. I replaced that and couldn't get it to backfire when driving in the same conditions, but would still backfire through the exhaust while loading up in reverse.
That's a whole lot of info I just slapped together in one go so if you need any clarification just ask. I can also get a video of the symptoms if that's necessary. Please help me figure out what I broke this time so I can fix it.