The rover is a 95 RRC that I purchased with a LT230 swapped in, CLD linkage not hooked up. It has the rotoflex removed and runs DII prop shafts. It has 3inch equipe springs, front and rear links, and steering. It had been running 265/75/16 Dunlop muds and the break down happened 3 blocks from the tire shop when I had 285/75/16 Dunlop muds installed. (31.7inch to 32.7inch tire)
I drove at 55-70mph for 60 miles to the tire shop and it ran fine. Driving away from the shop I went over railroad tracks at bout 30-35mph and heard a bang. I thought it was the new 1 inch taller tires hitting the fenders so I pulled over for a look. Everything looked good and when I went to drive away the engine will run, the tranny will go into drive, the t-case will engage in high, both prop shafts will spin, but the truck is stationary. T-case and tranny linkage look fine.
Note: the railroad crossing is not a big bump. It’s main street in a small central FL town (Palatka) and the speed limit is 35. The crossing has rubber inserts on each side of the rail so it’s not that big a bump and I wasn’t going any faster than the traffic that was smoothly crossing it.
2 mechanics from the shop I got the tires came down the road to look at it and were as confused as me. I was lucky enough to get Justin from Lucky 8 on the phone and he said it was like nothing he had ever heard of. I’m able to crawl under the truck and smoothly spin both prop shafts with my hand (all 4 tires on the ground) and both the front and rear diff pinions spin but there is no movement at the tires.
When it was winched onto the flat bed the tires rolled fine but the drive shafts did not spin.
The shop let me leave it inside and I said I would come back in a day or two with a flat bed and tow it home to work on it here. The guy was very nice and as confused as I was about the situation, he asked if I wanted him to put it up on the lift first thing tomorrow and try and figure it out (no charge) so I said fine.
I assume it must be both diffs or both front and rear shafts, but breaking at the same time is what’s got me confused. If I already had a broken half shaft in one axle, the unlocked LT230 wouldn’t have been driving fine?
Any Ideas? I’ll post pictures of whatever I find when I pull the diffs and shafts or if the shop down there does it.
Thanks,
Adam
I drove at 55-70mph for 60 miles to the tire shop and it ran fine. Driving away from the shop I went over railroad tracks at bout 30-35mph and heard a bang. I thought it was the new 1 inch taller tires hitting the fenders so I pulled over for a look. Everything looked good and when I went to drive away the engine will run, the tranny will go into drive, the t-case will engage in high, both prop shafts will spin, but the truck is stationary. T-case and tranny linkage look fine.
Note: the railroad crossing is not a big bump. It’s main street in a small central FL town (Palatka) and the speed limit is 35. The crossing has rubber inserts on each side of the rail so it’s not that big a bump and I wasn’t going any faster than the traffic that was smoothly crossing it.
2 mechanics from the shop I got the tires came down the road to look at it and were as confused as me. I was lucky enough to get Justin from Lucky 8 on the phone and he said it was like nothing he had ever heard of. I’m able to crawl under the truck and smoothly spin both prop shafts with my hand (all 4 tires on the ground) and both the front and rear diff pinions spin but there is no movement at the tires.
When it was winched onto the flat bed the tires rolled fine but the drive shafts did not spin.
The shop let me leave it inside and I said I would come back in a day or two with a flat bed and tow it home to work on it here. The guy was very nice and as confused as I was about the situation, he asked if I wanted him to put it up on the lift first thing tomorrow and try and figure it out (no charge) so I said fine.
I assume it must be both diffs or both front and rear shafts, but breaking at the same time is what’s got me confused. If I already had a broken half shaft in one axle, the unlocked LT230 wouldn’t have been driving fine?
Any Ideas? I’ll post pictures of whatever I find when I pull the diffs and shafts or if the shop down there does it.
Thanks,
Adam
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