zack1978 Posted April 13, 2006 Share Posted April 13, 2006 Hey everyone, I want to change the oil(s) in my front and rear diffs, the T-Case, and the trans. My truck is a 1995 SE-V6 5spd off-road package. I would like to go with all Amsoil syn oils. I have a few quarts of Amsoil 75W90 (it is rated GL-2 through GL-5) gear oil, am I correct that 75W90 would be fine for the Trans and the front Diff? I know that I can't use it in the rear diff because it has the limited slip, so what do I put in the rear diff? Also am I correct that the T-Case needs Auto trans fluid? If it does neeed ATF, I will also go Amsoil. Also what is the capacity of the trans, diffs and the t case? The owners man does not say. And lastly does anyone have any feedback on Amsoil products? I know that they are more expensive, but if they are good it is worth it! Thank you, Zack Link to comment Share on other sites More sharing options...
Duffman Posted April 13, 2006 Share Posted April 13, 2006 You use something like 80w90 in the back with an LSD suppliment like Lube Guard http://www.lubegard.com/automotive/index.html Link to comment Share on other sites More sharing options...
wheel366 Posted April 13, 2006 Share Posted April 13, 2006 (edited) I used Amsoil Long Life lube in the front and rear diffs and didn't add any additive. So far, I have no chatter. Amsoil Long Life for Diffs For the transfer case I used the Amsoil Synthetic Universal Automatic Transmission Fluid. Amsoil Synthetic ATF for Transfer case I didn't use Amsoil for the trans. I used Redline GL-4 Only. Here is the Amsoil Trans lube. Amsoil Synthetic Manual Trans Oil And the Redline MT-90 I don't remember the capacities for the diffs or transfer case but I do remember the trans take like 5 - 5.5 quarts. Also, amsoils site gives approx. vales for the capacities. Redline MT-90 GL-4 Transmission Oil Edited April 13, 2006 by wheel366 Link to comment Share on other sites More sharing options...
94extreme Posted April 13, 2006 Share Posted April 13, 2006 manual transmition GL-4 ONLY!! t-case: atf it seemsfor some of the newer wd21s but i actually changed mine to 75w90 as i wanted to decrease amount of different oils i had to have as backup. no adverse effects and i have 4wheeled quite a bit. some pretty hard action too. Link to comment Share on other sites More sharing options...
zack1978 Posted April 13, 2006 Author Share Posted April 13, 2006 I used Amsoil Long Life lube in the front and rear diffs and didn't add any additive. So far, I have no chatter. Amsoil Long Life for Diffs For the transfer case I used the Amsoil Synthetic Universal Automatic Transmission Fluid. Amsoil Synthetic ATF for Transfer case I didn't use Amsoil for the trans. I used Redline GL-4 Only. Here is the Amsoil Trans lube. Amsoil Synthetic Manual Trans Oil And the Redline MT-90 I don't remember the capacities for the diffs or transfer case but I do remember the trans take like 5 - 5.5 quarts. Also, amsoils site gives approx. vales for the capacities. Redline MT-90 GL-4 Transmission Oil So are you happy with the Amsoil products? Zack Link to comment Share on other sites More sharing options...
wheel366 Posted April 13, 2006 Share Posted April 13, 2006 Can't say I notice a difference. But I like the peace of mind that synthetic offers. Link to comment Share on other sites More sharing options...
88pathoffroad Posted April 14, 2006 Share Posted April 14, 2006 We may want to hash out which t-cases had a recommendation for ATF versus GL-5. My FSM for 88 says GL-5 only, regardless of which transmission is used. Link to comment Share on other sites More sharing options...
zack1978 Posted April 14, 2006 Author Share Posted April 14, 2006 Well in the owners man for my 1995 it states ATF for the T-Case, with a 5spd trans. Zack Link to comment Share on other sites More sharing options...
Animal Posted April 14, 2006 Share Posted April 14, 2006 '94 FSM says ATF for T-Case as well. Link to comment Share on other sites More sharing options...
94extreme Posted April 14, 2006 Share Posted April 14, 2006 ^^^ that is what it says. Link to comment Share on other sites More sharing options...
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