Search



Go Back   Third Generation F-Body Message Boards > Tech Boards > Transmissions and Drivetrain
Register Forgot Password?

Transmissions and Drivetrain Need help with your trans? Problems with your axle?
Sponsored by Hughes Performance
Click Here

Welcome to ThirdGen.org!
Welcome to ThirdGen.org.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join the ThirdGen.org community today!


Reply
 
Thread Tools Search this Thread
Old 08-17-2006, 08:15 PM   #1
Member
 
Casey Butt's Avatar
 
Join Date: Jun 2006
Location: Troy, MI
Posts: 307
Car: 1988 IROC-Z TBI
Engine: L04.3 = 305-310-336
Transmission: TH-700R4
Axle/Gears: 10-bolt, 3.42 posi

Classifieds Rating: (0)
700R4 3/4 Clutch Pack Clearance

I just put in my 3/4 clutch pack tonight and measured my clearance ...it's a lot closer than the stock .030"-.090" (depending on the year). I'm using a TCI Master Racing overhaul kit with Alto clutches and I'm getting about 0.010" as the largest clearance (a little less at certain points around the plate). I've heard that TransGo recommends as little as 0.015" clearance (for a faster apply), but I'm a little concerned about my tight clearance. Should I get a thinner plate to give me more clearance or will the tight clearance be okay? What are the pros and cons of the tighter clearance?
Casey Butt is offline vBGarage Page   Reply With Quote
Old 08-17-2006, 08:19 PM   #2
Moderator
 
Floor guy's Avatar
 
Join Date: Aug 2004
Location: Nanticoke, Pa
Posts: 1,361
Car: 89 Firebird
Engine: 406 CI
Transmission: Pete K 700R4
Axle/Gears: 3:55

Classifieds Rating: (0)

.010-.015 per clutch plate is a rule of thumb. On a full thickness 3-4 6 disc pack, I like .060-070. On the 8 disk Alto kits, I like .030-.040
Floor guy is offline vBGarage Page   Reply With Quote
Old 08-17-2006, 08:32 PM   #3
Senior Member
 
Join Date: Jul 2005
Location: Indiana
Posts: 345
Car: 87 trans am
Engine: 350 TPI bored .040 over
Transmission: modified 700r4
Axle/Gears: stock spline, 3.73 Eaton posi

Classifieds Rating: (0)
i have my 3-4 clear. at .045, b&m has the spec. at .039 to .098 which is way to big of a gap at least i think, the closer to min. you can get is good if you are for performance and it has a shift kit or something like that in it.for what clutches and steels i had, that was the smallest i could get. applies quicker and less slippage equals
__________________
Horsepower....The Possibilities
thirdgenlover is offline vBGarage Page   Reply With Quote
Old 08-17-2006, 08:41 PM   #4
Member
 
Casey Butt's Avatar
 
Join Date: Jun 2006
Location: Troy, MI
Posts: 307
Car: 1988 IROC-Z TBI
Engine: L04.3 = 305-310-336
Transmission: TH-700R4
Axle/Gears: 10-bolt, 3.42 posi

Classifieds Rating: (0)
The transmission is "built" - shift kit, servo, stiffer springs, hardened sunshell, wide band, etc - but I really don't know the downside to running a really tight clearance on the 3-4 clutch pack ...it's got me concerned. If it's too tight could it cause problems when it's not applied?
Casey Butt is offline vBGarage Page   Reply With Quote
Old 08-17-2006, 10:28 PM   #5
Supreme Member
 
87zjeff's Avatar
 
Join Date: Aug 2005
Location: louisville, ky
Posts: 1,346
Car: '91rs w/ '87 power train:D
Engine: 355 tpi
Transmission: modified 700r4
Axle/Gears: '01 3.42 10 bolt

Classifieds Rating: (4)
Send a message via Yahoo to 87zjeff
if the clearance is to tight, it can burn it up(and probably will) even though it is not applied. i run the raybestos "Zpac" and have about .040 to .045 clearance. .015 is way to tight in my opinion.
87zjeff is offline vBGarage Page   Reply With Quote
Old 08-17-2006, 11:41 PM   #6
Member
 
Casey Butt's Avatar
 
Join Date: Jun 2006
Location: Troy, MI
Posts: 307
Car: 1988 IROC-Z TBI
Engine: L04.3 = 305-310-336
Transmission: TH-700R4
Axle/Gears: 10-bolt, 3.42 posi

Classifieds Rating: (0)
...just mixed and matched some steels and got ~0.045" on the 3-4 pack and ~0.015" on the forward pack. Thanks everyone.
Casey Butt is offline vBGarage Page   Reply With Quote
Old 08-19-2006, 07:51 AM   #7
Supreme Member
 
Join Date: Jul 1999
Location: Calimesa, California, U.S.
Posts: 3,087

Classifieds Rating: (0)

With the 700R4 performance builups, I use .040"-.055", on the 3-4 clutch, and .015"-.040" on the forward clutch.
Pro Built Automatics is offline vBGarage Page   Reply With Quote
Old 08-19-2006, 07:51 AM
ThirdGen
1992 Camaro




Paid Advertisement


Reply

Go Back   Third Generation F-Body Message Boards > Tech Boards > Transmissions and Drivetrain

Tags
34, 4r, 700, 700r4, 89, clearance, clearence, clutch, cluth, forward, pack, plates, r4, specs, tci
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 


1982 Camaro '82 || 1983 Camaro '83 || 1984 Camaro '84 || 1985 Camaro '85 || 1986 Camaro '86 || 1987 Camaro '87 || 1988 Camaro '88 || 1989 Camaro '89 || 1990 Camaro '90 || 1991 Camaro '91 || 1992 Camaro '92


All times are GMT -5. The time now is 03:38 PM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
All content copyright 1997 - 2014 ThirdGen.org. All rights reserved. No part of this website may be reproduced without the expressed, documented, and written consent of ThirdGen.org's Administrators.

Emails & Contact Details