Lt1 T-56 trans question. - Hot Rod Forum : Hotrodders Bulletin Board -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend
User Name
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 05-01-2011, 01:43 PM
staleg's Avatar
Registered User

Last journal entry: Hand brake
Last photo:
Join Date: Dec 2005
Location: Norway - Europe
Age: 50
Posts: 918
Wiki Edits: 0

Thanks: 3
Thanked 15 Times in 13 Posts
Lt1 T-56 trans question.

I'm building a custom set up with a LT-1 T56 transmission on a 1st gen small block and have trouble with the hydraulic clutch linkage.

I have read and heard that the stock clutch MC for Chevy LT1-T56 have a 3/4" bore and that the correct stroke (on the MC) is 7/8".

Because of limited space I can't use the stock master, so I bought a Wilwood 3/4" MC and made the ratio so that the MC get 7/8" stroke by full pedal travel.

When I tested this setup tonight, with the slave cylinder mounted in the transmission, it felt like the slave cylinder was way overloaded. All the brake fluid leaked out at the rear end by the push rod on the salve. I barely moved the cluth pedal and then it happened.

Are the data I use correct?
IF I have too much stroke and / or too big master, will a destroyed slave be the result, or will the clutch fork just bottoms out in the transmission before I have full pedal travel?

The slave cylinder is an after marked piece, made in Mexico. It looked and "felt" very much the same at the original one, but could it be bad?

Any other suggestions to what I have done wrong?
Personally I suspect the slave cylinder because it happened so quick. I barely moved the clutch pedal when I felt something gave in. If a too long stroke was the reason, I figure the slave eventually would bee destroyed somewhere right before the end of the stroke?

Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
200-4r trans question 75sprintguy Transmission - Rearend 4 09-16-2007 07:00 AM
trans question redlight101 Transmission - Rearend 1 02-04-2007 08:35 AM
Trans Am Question TransAm96 General Rodding Tech 1 06-20-2005 06:59 PM
T-5 trans question classic_chevy_guy Transmission - Rearend 4 01-09-2004 11:05 AM
Trans question awsum34 Transmission - Rearend 2 07-03-2003 12:08 PM

All times are GMT -6. The time now is 12:29 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999 - 2012. All Rights Reserved.