Diesel Bombers - 3 or 4 speed?...

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NSmachine44

10-04-2015 08:17 AM

3 or 4 speed?...

I have a 1995 ram 2500 cummins with an automatic transmission, I got this truck recently and still don't know much about it, but what I did notice is even at 50 mph I'm at 2k Rpms.. Which would be 3rd gear. What I'm wandering, is this normal? Is it a 3 speed? Or is it a 4 speed and it's just not shifting into 4th?

94 12valve

10-04-2015 06:30 PM

Sounds to me like you don't have any overdrive your trans should be the 47rh which is a 4 speed trans with converter lock up.

NSmachine44

10-05-2015 08:02 AM

Guess not, because even the O/D switch on the dash doesn't do anything. But it does light up.

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