C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Trans Question

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Old 11-25-2009, 07:34 AM
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Pete K
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Last edited by Pete K; 06-12-2011 at 10:56 AM.
Old 11-25-2009, 07:55 AM
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mseven
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Not me personally but I have heard of input shaft and drum failures from the the local trans guy.
BTW, your pm box is full ....lol
Old 11-25-2009, 10:48 AM
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steve40th
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Some guys on LS1tech have broken input shafts. I dont know about drums though.
Old 11-25-2009, 06:43 PM
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RichS
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I grenaded a input drum. 700R4 I should start a list of what I haven't broke.
Old 11-26-2009, 08:42 AM
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RichS
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Yes, But since going with Sepanek, and back to the TCI valvebody it seems much better. To bad I broke a halfshaft so I couldn't run it in the good fall air.
Old 02-04-2010, 07:17 PM
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AustinJohn
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I have just rebuilt my 4L60e and among the problems we found was an input drum with spider cracks PLUS. In other words, the drum hadn't yet become a grenade but could at any moment.

At this rebuild the tranny had 160k. Previous rebuilders' marks on the case lead us to believe it had a full rebuild at ~80k and then a TransGo shift kit at ~100k.

Our guess is the drum was in trouble before the shift kit was installed but that since the shift kit was probably installed without pulling the tranny (and checking the drum), the then owner probably pushed the tranny causing the ultimate failure (although it did last for another 60k!)

John
Old 02-05-2010, 04:17 AM
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REDC4CORVETTE
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I have splined the converter !!Never broke the shaft.725 hp at the motor.10.50 MT 28 inch slicks on the rear!!700r4 reverse manuel.

Last edited by REDC4CORVETTE; 02-06-2010 at 02:45 AM.
Old 02-05-2010, 04:25 AM
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cv67
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4l60E bone stock
Old 02-05-2010, 07:37 AM
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2REDGMC
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Broke a expermintal billet input shaft in my 4L60e. Put the stock on back in it and so far it's holding but I suspect when I bolt the blower on the LSX440 it will brake something

I also broke the stock input shaft in a 200R4 with a blown 541 in front of it. replaced it with a billet one and it seams to be working fine. But the stock one lasted 4 years

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