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 09-11-2018, 01:08 PM
irishjedikev irishjedikev is offline
232 I6
 
Join Date: Aug 27, 2017
Location: ID
Posts: 42
1 QT Question and 1 MM Question

Hi Folks! Coming back to the experts. I did a search before this post, but I haven't seen an answer that helped clear it up for me (and it's likely me that's the issue )

QT Question:

I have a QT that I'm rebuilding. It already has the MM part time kit in it. I'm replacing the chain with a USA one from BJ's. My question is what type of ATF should I fill it back up with or does it matter?

MM/PT Question:

The QT I'm rebuilding with the MM part time kit in it is a replacement for the all stock one I have in there now. I know I have to install locking hubs in the front and I have a set of MM locking hubs which I'll install when the new TC goes in. To engage the 4x4, i have to turn on the switch in the glove and then lock the front hubs. I would obviously do this only when it's necessary (snow, mud, etc.). I read somewhere on here that the part time kit should only be used part time and only on slippery surfaces and that if I ran it on dry, it wouldn't last very long. My question is...is it that dire when road is dry? I can see it being snowy in patches and dry in patches. Do I need to engage and disengage constantly depending on condition?

Thanks!!
Reply With Quote
  #2  
Old 09-12-2018, 09:45 AM
joe joe is offline
 
Join Date: Apr 28, 2000
Location: PNWet, USA
Posts: 22,122
MM recommends GM Dexron type ATF(the red juice). Ran that in mine and it worked fine.
Once converted to part-time on dry pavement you need to be in 2WD. In 4WD mode, like with any part-time tcase a wheel needs to slip occasionally to relieve the bind/stress out of the system. On the vacuum shift QT I don't know if you can shift-on-the-fly between 2WD/4WD like with a mechanical shift part-time tcase? I never tried.
__________________
joe
"Don't mind me. I'm just here for the alibi"
Reply With Quote
  #3  
Old 09-17-2018, 06:22 AM
fulsizjeep's Avatar
fulsizjeep fulsizjeep is offline
Señor Jackhead
 
Join Date: Aug 21, 2002
Location: Jubilee Jeeps.SWCO
Posts: 22,225
I use the same ATF I put in the T400.

MM recommends 1-3 mph for shifting in and out of 4WD. I imagine there could be trouble if you tried shifting on the fly. I would lock the hubs before shifting into 4WD. The part time kit is designed to prevent binding on dry surface in 4WD as the spacing between the teeth on the coupler are wider than the teeth.

MM instruction manual:
http://jubileejeeps.org/quadratrac/mm_instructions.pdf
__________________
Flint
Ran when parked.
http://jubileejeeps.org/quadratrac
88 GW, 401/727/208, 5" lift, D44s/4.10s/locked up, 35s and a few Evil Twin mods, http://eviltwinfab.com and a few TT's Fabworks mods, http://www.ttsfabworks.com
76 401 Wag, 77 401 Wag, 77 401 J20
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

Similar Threads
Thread Thread Starter Forum Replies Last Post
QT leak question (does the low range unit communicate directly with the main case)? Frustrated General FSJ Tech 5 07-11-2009 10:00 AM
QT question Eugene 1 General FSJ Tech 5 01-30-2007 04:43 PM
tow dolly and PT QT question blt2krl General FSJ Tech 3 01-18-2004 01:12 PM
QT question billybooster General FSJ Tech 6 11-20-2003 02:51 AM
FT QT w/ rear locker drivability question Joe J-Truck General FSJ Tech 12 12-18-2002 05:58 PM


All times are GMT -6. The time now is 12:07 PM.


Powered by vBulletin Version 3.5.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
corner corner