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Old 11-15-2009
davidw's Avatar
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Join Date: Aug 2008
Location: Bow,WA
Posts: 207
Royal Purple SynchroMax

just changed my tranny fluid with Royal Purple SynchroMax Manual tranny fluid. tranny shifts great! also changed my transfer case fluid with Royal Purple Max ATF. good no more noises, no more hard shifting. stuff works
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Old 11-16-2009
IN2 FX4's Avatar
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Location: Costa Mesa, CA
Posts: 855
I put it in my transmission and got some improvement in shifting but I can't say it was a major improvement.
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Old 07-29-2013
Join Date: Jul 2013
Location: India
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Oh it is good and i like it.
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Old 07-29-2013
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Was thinking on royal Purple with the gear change, both diffs and the T/C.

Is there different weights in the gear lube ?
I've seen 75-140 but wasn't sure if this is it or not !

Is there special ATF for FORD's ?
Knowing Ford they used a special ATF in the T/C too !

Last edited by Scrambler82; 09-02-2013 at 04:51 AM.
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