Trans Question

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Nov 25, 2009 | 07:34 AM

Pete K

Thread Starter

Race Director

Joined: Feb 2004

Posts: 12,517

Likes: 19

Trans Question

....

Last edited by Pete K; Jun 12, 2011 at 10:56 AM.

Nov 25, 2009 | 07:55 AM

mseven

Le Mans Master

Joined: Feb 2005

Posts: 5,146

Likes: 3

From: The Motor City

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

Nov 25, 2009 | 10:48 AM

steve40th

Le Mans Master

Joined: Feb 1999

Posts: 9,913

Likes: 37

From: South Carolina

St. Jude Donor '03 & '05

Some guys on LS1tech have broken input shafts. I dont know about drums though.

Nov 25, 2009 | 06:43 PM

RichS

Le Mans Master

Joined: Aug 1999

Posts: 7,337

Likes: 137

From: WilkesBarre PA

I grenaded a input drum. 700R4 I should start a list of what I haven't broke.

Nov 26, 2009 | 08:42 AM

RichS

Le Mans Master

Joined: Aug 1999

Posts: 7,337

Likes: 137

From: WilkesBarre PA

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.

Feb 4, 2010 | 07:17 PM

AustinJohn

Pro

Joined: Dec 2006

Posts: 557

Likes: 4

From: Austin Texas

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

Feb 5, 2010 | 04:17 AM

REDC4CORVETTE

Safety Car

Joined: Apr 2004

Posts: 4,532

Likes: 7

From: Lahaina Hi

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; Feb 6, 2010 at 02:45 AM.

Feb 5, 2010 | 04:25 AM

cv67

Team Owner

Joined: Oct 2004

Posts: 81,241

Likes: 3,062

From: altered state

St. Jude Donor '05

4l60E bone stock

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Feb 5, 2010 | 07:37 AM

2REDGMC

Intermediate

Joined: Jan 2010

Posts: 37

Likes: 0

From: Kingwood TX

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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