waxman Posted October 21, 2014 Share Posted October 21, 2014 Trying to find the proper gear oil and amount for 1 ton differential. Thanks in advance. Quote Link to comment Share on other sites More sharing options...
Derek up North Posted October 22, 2014 Share Posted October 22, 2014 The FSM makes no reference to anything special for the FF 1-Ton differential. Quote Link to comment Share on other sites More sharing options...
Vanman Posted October 22, 2014 Share Posted October 22, 2014 My 1991 owners manual says; 22RE 1.4 Qt , 3VZ-E single rear wheel 1.9 Qt, rear dual wheels 2.3 Qt.Oil type API GL-5.Under recommended Viscosity says;A.D.D. SAE 75W-90Except A.D.D.Above 0 F~18 C SAE 90Below 0 F~18 C 80W or 80W-90So what does A.D.D. mean ???? I only see it on page 190.vanman Quote Link to comment Share on other sites More sharing options...
Derek up North Posted October 22, 2014 Share Posted October 22, 2014 I remember seeing the ADD. I think it was a locking diff in a 4x4, IIRC. Quote Link to comment Share on other sites More sharing options...
Derek up North Posted October 22, 2014 Share Posted October 22, 2014 In my 1992 Manual, it only refers to ADD for the 4x4 front differential. Quote Link to comment Share on other sites More sharing options...
Derek up North Posted October 22, 2014 Share Posted October 22, 2014 A.D.D. = Automatic Disconnecting Differential (pg 59). Quote Link to comment Share on other sites More sharing options...
DanAatTheCape Posted October 28, 2014 Share Posted October 28, 2014 I changed the rear end oil in a 92 itasca spirit once - 2.3 qts is about right. Quote Link to comment Share on other sites More sharing options...
Derek up North Posted October 28, 2014 Share Posted October 28, 2014 2.3 US quarts is what the '93 FSM lists for a 4 pinion rear diff which is quite possibly what all 1-Ton DRW axles had with the V6. So it's quite possible that a 4 cylinder will only require 1.9 quarts. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.