Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: kevslh on February 04, 2010, 08:41:02 PM

Title: 2001 3.1 td gc diff oils
Post by: kevslh on February 04, 2010, 08:41:02 PM

Hi all
About to change my diff oil front and back, is it ok to use 75/140 GL5 synthetic gear oil in both axles also how much friction additive do i need to put in each axle.
Can  you also tell me what automatic transmission fluid i need for the auto box and where can i buy it from.
Any help would be appreciated
Kev

Title: Re: 2001 3.1 td gc diff oils
Post by: Asylum on February 04, 2010, 09:43:14 PM

http://www.birtydastards.com/frm/index.php?topic=8091.0 (http://www.birtydastards.com/frm/index.php?topic=8091.0)
 :greggmo:

Title: Re: 2001 3.1 td gc diff oils
Post by: kevslh on February 05, 2010, 12:05:38 AM

Asylum thanks for your reply, i read the link but it doesn't tell you if or how much friction additive you need. Mine has got Quadra-TracII on the gearshift panel so i dont know if it has lsd or not.
Kev

Title: Re: 2001 3.1 td gc diff oils
Post by: Mike Pavelin on February 05, 2010, 09:17:25 AM

None. You have open diffs.

Title: Re: 2001 3.1 td gc diff oils
Post by: kevslh on February 05, 2010, 11:05:58 PM

 Mike thanks, so does that mean I have std axles both front and back, so can I just use normal 75W90 GL5 gear oil in both axles.
Also what atf can I use in the auto gearbox, preferably one I can get from a local motor factors rather than having to pay a fortune at the dealers.
Thanks for your help
Kevin 

Title: Re: 2001 3.1 td gc diff oils
Post by: Mike Pavelin on February 06, 2010, 09:04:51 AM

Like I said, you have open diffs The factory reccomends 75W90 for these, but personally, I would use the 75/140 fully synthetic anyway knowing the Jeep's appetite for diff bearings. As far as transmission fluid is concerned, only ATF+4 will do. Chrysler transmissions user different friction materials to GM and Ford, and so Dexron and Mercon fluids will not do. Valvoline and Mobil do make ATF+4 compatible fluids but I don't know how easy they are to find in the UK aftermarket.