The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 12-12-2012, 01:14 PM   #1
ScottG
Registered User
 
Join Date: Feb 2012
Location: Ventura,Ca
Posts: 745
Another 700r4 question

So, I'm now to the point of swapping speedo gears on my 700R4. My question is, do I need to put back the "sleeve" that was on the shaft that butts up against the gear? It's about 3 1/2-4 inches long. I can't find anything that talks about it.
__________________
'67 C20 LBW
ScottG is offline   Reply With Quote
Old 12-12-2012, 01:15 PM   #2
ScottG
Registered User
 
Join Date: Feb 2012
Location: Ventura,Ca
Posts: 745
Re: Another 700r4 question

I guess I should include I'm swapping from electric to mechanical speedo gears.
__________________
'67 C20 LBW
ScottG is offline   Reply With Quote
Old 12-12-2012, 07:24 PM   #3
shortbed70
Registered User
 
shortbed70's Avatar
 
Join Date: Mar 2002
Location: Forney TX
Posts: 4,512
Re: Another 700r4 question

I don't remember a sleeve when I did mine from elect to mech... I would say if the gear fits on the shaft tight then I say no. It would help if I knew exactly what the part was.
Posted via Mobile Device
__________________
Troy

1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb

my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884

Big Red Dog build
http://67-72chevytrucks.com/vboard/s...d.php?t=572274
shortbed70 is offline   Reply With Quote
Old 12-12-2012, 07:59 PM   #4
clinebarger
Senior Member
 
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
Re: Another 700r4 question

If the slip yoke has a "weep hole" in it....You need the sleeve.
If not.....Leave it off.

The weep hole relieves pressure buildup caused by the yoke moving back an forth as the vehicle passes over bumps.

If you have a weep hole & need to reinstall the sleeve....Replace the O-ring GM P/N 3764601
Attached Images
  
clinebarger is offline   Reply With Quote
Old 12-13-2012, 12:36 AM   #5
shortbed70
Registered User
 
shortbed70's Avatar
 
Join Date: Mar 2002
Location: Forney TX
Posts: 4,512
Re: Another 700r4 question

Quote:
Originally Posted by clinebarger View Post
If the slip yoke has a "weep hole" in it....You need the sleeve.
If not.....Leave it off.

The weep hole relieves pressure buildup caused by the yoke moving back an forth as the vehicle passes over bumps.

If you have a weep hole & need to reinstall the sleeve....Replace the O-ring GM P/N 3764601
AH HAA that's where that drip is coming from... Forgot about the wheep hole. So can I just change yokes on mine since it didn't have the sleeve?
Posted via Mobile Device
__________________
Troy

1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb

my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884

Big Red Dog build
http://67-72chevytrucks.com/vboard/s...d.php?t=572274
shortbed70 is offline   Reply With Quote
Old 12-13-2012, 11:35 AM   #6
ScottG
Registered User
 
Join Date: Feb 2012
Location: Ventura,Ca
Posts: 745
Re: Another 700r4 question

Quote:
Originally Posted by clinebarger View Post
If the slip yoke has a "weep hole" in it....You need the sleeve.
If not.....Leave it off.

The weep hole relieves pressure buildup caused by the yoke moving back an forth as the vehicle passes over bumps.

If you have a weep hole & need to reinstall the sleeve....Replace the O-ring GM P/N 3764601

that answers my question, thanks!!
__________________
'67 C20 LBW
ScottG is offline   Reply With Quote
Old 12-13-2012, 07:59 PM   #7
clinebarger
Senior Member
 
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
Re: Another 700r4 question

Quote:
Originally Posted by shortbed70 View Post
AH HAA that's where that drip is coming from... Forgot about the wheep hole. So can I just change yokes on mine since it didn't have the sleeve?
Posted via Mobile Device
Take the yoke off the drive shaft, Drill & tap the hole to 10-32, Cut down a 10-32 screw to about 3/8", Put some Red Loctite on it & run it in, Let sit for 24 hours to let the Loctite cure, This is a permanent fix, & beats buying a $100 Yoke.
clinebarger is offline   Reply With Quote
Old 12-13-2012, 11:46 PM   #8
shortbed70
Registered User
 
shortbed70's Avatar
 
Join Date: Mar 2002
Location: Forney TX
Posts: 4,512
Re: Another 700r4 question

Quote:
Originally Posted by clinebarger View Post
Take the yoke off the drive shaft, Drill & tap the hole to 10-32, Cut down a 10-32 screw to about 3/8", Put some Red Loctite on it & run it in, Let sit for 24 hours to let the Loctite cure, This is a permanent fix, & beats buying a $100 Yoke.
Thanks.
Posted via Mobile Device
__________________
Troy

1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb

my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884

Big Red Dog build
http://67-72chevytrucks.com/vboard/s...d.php?t=572274
shortbed70 is offline   Reply With Quote
Old 12-20-2012, 12:42 PM   #9
ScottG
Registered User
 
Join Date: Feb 2012
Location: Ventura,Ca
Posts: 745
Re: Another 700r4 question

Quote:
Originally Posted by clinebarger View Post
If the slip yoke has a "weep hole" in it....You need the sleeve.
If not.....Leave it off.

The weep hole relieves pressure buildup caused by the yoke moving back an forth as the vehicle passes over bumps.

If you have a weep hole & need to reinstall the sleeve....Replace the O-ring GM P/N 3764601
driveline shop is installing a new yoke, and he's gonna weld up the weep hole. New center support and joints as well. I think I'm going to snap some pics of the conversion and post them so people can get a visual of what's needed to do this swap.
__________________
'67 C20 LBW
ScottG is offline   Reply With Quote
Reply

Bookmarks

Tags
700r4, 700r4 swap

Thread Tools
Display Modes

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

Forum Jump


All times are GMT -4. The time now is 01:26 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com