redwraith94
SHO Member
I bought this Sho from my friend Roger, and knew it needed the trans replaced. I am almost done rebuilding the replacement, and just got around to dismantling the old one.
He did alot of neutral drops, and burnouts, and almost always a drag style launch. I am frankly surprised that the clutch held up so well.
The 1st through 4th gear's blocking rings were each broken into three pieces, The differential had lost a pin, and gear, and last but not least the first gear on the output shaft had crushed the grooves on the shaft, I wasn't even able to get the synchro set off of the output shaft with a gear puller. It was awesome.
The differential with the ejected pin:
The broken blocking rings:
The holes in the transmission case:
Last, but not least, the crushed shaft splines:
I finally figured out how the shaft splines got crushed by first gear. He ran this trans for months after the diff pin was ejected, and the trans got really low on oil a few times.
Since Roger always launched in first with low oil, there wasn't enough for the shaft, and the splines got heat treated. After they softened up the force on first gear smashed them. You can see the little bit of blue from their 'process annealing'.
I showed him the broken blocking rings, and he just said 'that makes sense'...:swing:
Incidentally, this trans had about 217k miles on it, and even with the ejected pins, the pins weren't galled, and neither were the side gears. I think with replacing the roll pins with hardened (grade 8 or better) shoulder bolts, and adding moly to the oil. It may solve the problem of the differential grenading like that. On both sides the roll pins were sheared off, but the aluminum would have stayed in tact if they hadn't broken.
He did alot of neutral drops, and burnouts, and almost always a drag style launch. I am frankly surprised that the clutch held up so well.
The 1st through 4th gear's blocking rings were each broken into three pieces, The differential had lost a pin, and gear, and last but not least the first gear on the output shaft had crushed the grooves on the shaft, I wasn't even able to get the synchro set off of the output shaft with a gear puller. It was awesome.
The differential with the ejected pin:
The broken blocking rings:
The holes in the transmission case:
Last, but not least, the crushed shaft splines:
I finally figured out how the shaft splines got crushed by first gear. He ran this trans for months after the diff pin was ejected, and the trans got really low on oil a few times.
Since Roger always launched in first with low oil, there wasn't enough for the shaft, and the splines got heat treated. After they softened up the force on first gear smashed them. You can see the little bit of blue from their 'process annealing'.
I showed him the broken blocking rings, and he just said 'that makes sense'...:swing:
Incidentally, this trans had about 217k miles on it, and even with the ejected pins, the pins weren't galled, and neither were the side gears. I think with replacing the roll pins with hardened (grade 8 or better) shoulder bolts, and adding moly to the oil. It may solve the problem of the differential grenading like that. On both sides the roll pins were sheared off, but the aluminum would have stayed in tact if they hadn't broken.
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