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View Full Version : rear diff, front diff, trans case, or all the above? blackcrowe 11-03-2003, 07:23 PM Just wondering which one was most important to change the fluid? I did change all three about a year ago (used dyno, but thinking about switching to syn). Also..i NEVER, EVER use my 4WD, if that means anything. Any advice appreciated! RiverRat 11-03-2003, 08:09 PM I guess it all depends. My rear end is often under water from the launch ramp so in my case I would think that one is most important to change. Plus I do a lot of towing in 2 by. Rhett 11-04-2003, 01:48 PM Which is most important? I guess if you think of it in terms of change interval, then the transfer case fluid (ATF on a BW1354) is most important to change, I believe it's on a 30,000 or 60,000 mi change interval... Whereas the front and rear diffs are 100,000 mile change interval...or "sealed for life" if you have the synth lube in there, according to Ford. |