International Full Size Jeep Association
Home Forums Reader's Rigs Tech Library Trail Stories FSJ-List
International Full Size Jeep Association  

Go Back   International Full Size Jeep Association > Tire Kickin' > General FSJ Tech

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 12-19-2006, 10:47 PM
Locked and Loaded's Avatar
Locked and Loaded Locked and Loaded is offline
350 Buick
 
Join Date: Jul 04, 2006
Location: Glendale, Arizona
Posts: 1,279
Model 20 Limited Slip

I noticed that the model 20 rear end on my j10 has CC stamped on it. According to the factory manual that means 3.31 gears and limited slip. I never thought it had limited slip. So it must be worn out or it doesn't have it any more. I pulled the cover off. Should I be able to see the fricton plates in plain view? Do any of you have pictures of what it looks like? The exploded view in the manual is deceiving. Also where can I get a step by step procedure to rebuild it?
__________________
Jeff

Drink more water.


"Nothin' ain't worth nothin'.
But it's free"
Kris Kristofferson 1970

1981 J10, 258, T176, NP208
Reply With Quote
  #2  
Old 12-19-2006, 11:00 PM
Crazy_Jeepman's Avatar
Crazy_Jeepman Crazy_Jeepman is offline
Sloppy Shifter
 
Join Date: Jan 16, 2001
Location: Norway Michigan
Posts: 15,996
Won't be in plain view, but usually you can see them if you look carefully. They would be behind the side gears. Here is a diagram from a baby Jeep 20 #24 is what you are looking for in your diff
http://www.jeepdoc.com/catalog/partspix/AMC20TLoc.jpg
__________________
Daily Driver 2008 Wrangler Sahara
Going, Gone, or Thinking Fishing
Reply With Quote
  #3  
Old 12-20-2006, 10:13 PM
Locked and Loaded's Avatar
Locked and Loaded Locked and Loaded is offline
350 Buick
 
Join Date: Jul 04, 2006
Location: Glendale, Arizona
Posts: 1,279
Have any of you rebuilt a trac lock?
__________________
Jeff

Drink more water.


"Nothin' ain't worth nothin'.
But it's free"
Kris Kristofferson 1970

1981 J10, 258, T176, NP208
Reply With Quote
  #4  
Old 12-21-2006, 09:16 AM
J10Mike's Avatar
J10Mike J10Mike is offline
Delightfully Incompetent
 
Join Date: Jun 04, 2003
Location: St. Louis, Mo. 63052
Posts: 5,811
Quote:
Originally Posted by Locked and Loaded
Have any of you rebuilt a trac lock?
I didn't rebuild one. But, I did pull one apart for the heck of it to get a close up understanding of a clutch plate based LSD. Not bad at all. I think the one of the most important things would be to make sure the new clutch plates go back in in the right order. Also, I would replace the cross shaft as well since they seem to show some wear.
__________________
www.j10mike.com
Former - 1982 J10 Sportside, 360, TFI, 727/208, J20 axles, D44HD/Detroit TruTrac, D60/Detroit Locker, D60 disk brake conversion, 4.10s, 5 inch Superlift, 35x12.5x16.5 BFGs on AR767 Wheels. Procomp Super Seats. MileMarker 9000 on Cliffhanger front bumper. Dozer II rear bumper. Rhino Grill conversion. NP208 floor shifter conversion.

Reply With Quote
  #5  
Old 12-21-2006, 10:24 AM
tgreese's Avatar
tgreese tgreese is offline
 
Join Date: May 29, 2003
Location: Medford MA USA
Posts: 11,460
There's some extra help about rebuilding the Trac-loc on the Randy's R&P site: http://www.ringpinion.com/ContentFra..._Made_Easy.inc
__________________
Tim Reese
Maine beekeeper's truck: '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS, hubcaps.
Browless and proud: '82 J20 360/T18/NP208/3.73, Destination ATs, 7600 GVWR
Copper Polly: '75 CJ-6, 304/T15, PS, BFG KM2s, soft top
GTI without the badges: '95 VW Golf Sport 2000cc 2D
ECO Green: '15 FCA Jeep Cherokee KL Trailhawk
Reply With Quote
  #6  
Old 12-24-2006, 10:35 PM
Locked and Loaded's Avatar
Locked and Loaded Locked and Loaded is offline
350 Buick
 
Join Date: Jul 04, 2006
Location: Glendale, Arizona
Posts: 1,279
Since I can't see the clucth plates and I don't want to tear it apart to see if it is trac loc I guess I'll put the cover back on an assume it's an open diff. I was just hoping it was visable. Someone told me if I raise the rear end and spin one tire if the other tire goes in the opposite direction it's open. If it goes in the same direction it's limited slip. Is this true? Mine spins opposite. I guess it's open. Wonder why CC is stamped on it?
__________________
Jeff

Drink more water.


"Nothin' ain't worth nothin'.
But it's free"
Kris Kristofferson 1970

1981 J10, 258, T176, NP208
Reply With Quote
  #7  
Old 12-25-2006, 09:07 AM
Elliott's Avatar
Elliott Elliott is offline
Cowboy Up
 
Join Date: Jun 22, 2002
Location: Pilot Point, TX
Posts: 12,704
Quote:
Originally Posted by Locked and Loaded
Someone told me if I raise the rear end and spin one tire if the other tire goes in the opposite direction it's open. If it goes in the same direction it's limited slip. Is this true?

That works with a full locker, like a Detroit. Not sure if that works with limited slip...
__________________
*** I am collecting pics and info on any factory Jeep Dually trucks from the J-Series at the new Jeep Dually Registry.
***I can set you up with hydroboost for your brakes: http://www.ifsja.org/forums/vb/showthread.php?t=106056
Reply With Quote
  #8  
Old 12-25-2006, 09:14 AM
Crazy_Jeepman's Avatar
Crazy_Jeepman Crazy_Jeepman is offline
Sloppy Shifter
 
Join Date: Jan 16, 2001
Location: Norway Michigan
Posts: 15,996
Yes both wheels will spin the same way IF the clutch packs are in good condition, once they wear out, it will act just like an open diff. You can tell with the cover off, if you were to look carefully you would be able to see clutch packs behind the side gears, look like washers.
__________________
Daily Driver 2008 Wrangler Sahara
Going, Gone, or Thinking Fishing
Reply With Quote
  #9  
Old 12-25-2006, 12:15 PM
Locked and Loaded's Avatar
Locked and Loaded Locked and Loaded is offline
350 Buick
 
Join Date: Jul 04, 2006
Location: Glendale, Arizona
Posts: 1,279
Thanks for the info. Does anyone have any pictures of the clutch plates with the cover off?
__________________
Jeff

Drink more water.


"Nothin' ain't worth nothin'.
But it's free"
Kris Kristofferson 1970

1981 J10, 258, T176, NP208
Reply With Quote
  #10  
Old 12-25-2006, 12:25 PM
Crazy_Jeepman's Avatar
Crazy_Jeepman Crazy_Jeepman is offline
Sloppy Shifter
 
Join Date: Jan 16, 2001
Location: Norway Michigan
Posts: 15,996


Thats what you are looking for behind the side gears

This will be similar to what you need to see.



If you look behind that side gear, you see the clutch packs in there. These are not AMC 20 carriers but are going to be similar to what you need to see
__________________
Daily Driver 2008 Wrangler Sahara
Going, Gone, or Thinking Fishing
Reply With Quote
  #11  
Old 12-26-2006, 10:38 PM
Locked and Loaded's Avatar
Locked and Loaded Locked and Loaded is offline
350 Buick
 
Join Date: Jul 04, 2006
Location: Glendale, Arizona
Posts: 1,279
Thanks. That is what I was looking for. Looks like I have trac Loc. I'm gonna start tearing into it tomorrow. If any one has done this, are there any warnings?
__________________
Jeff

Drink more water.


"Nothin' ain't worth nothin'.
But it's free"
Kris Kristofferson 1970

1981 J10, 258, T176, NP208
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 08:29 PM.


Powered by vBulletin Version 3.5.4
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
corner corner