Cummins12V98 wrote:
"Only place the 68RFE is better is in reverse" That I did not know. The SAE tests require backing load up a steep grade. They must figure the Aisin is stronger and can handle the stress.
All it has to do is go up the 12% minimum grade. Does not say how fast, easy etc. Just has to go up. 12% is a pretty minimum grade when I've seen roads in downtown seattle into the low 20% range. Short hops on forest service campgrounds into this range. Job/construction sites into the 30's......one stalls out on these, will not matter what major brand whatamacallit you have. if it is not setup to do this work, but only the J2087 specs, you're stalled out, screwed, buying a new tranny!
Marty