94-98 Auto Tranny..

[greg@Lockitup]

Probably a newb question that I could search and find but here goes..

Is the 47RE the only model auto tranny that came in these trucks?

[cjensen91910]

94 and 95 came with a 47rh rather than an 47re.

[greg@Lockitup]

Originally Posted by cjensen91910

94 and 95 came with a 47rh rather than an 47re.

Was the 47rh plagued with the same historical problems as the 47RE?

[Joe G.]

The difference between the two transmissions is the governors. The 47RH has a mechanical fly weight governor. The 47RE has a computer controlled governor. This, of course, means that the valve bodies are different. The rest of them are just about the same with minor differences.

[greg@Lockitup]

Thanks! Exactly what I needed to know!

[euid]

Basically the alphanumeric ID's work as such

First field = number of speeds

4 = 4 speed
3 = 3 speed

second field is a torque rating, not sure how they rate these but it's a scale of 0 - 8

Third field is the DT config, so

R = Rear wheel drive
A = All wheel drive
T = Transverse mount
L = Longditudinal mount

Fouth field is the control system

H = Hydraulic
E = Electronic

So as mentioned in the last post a 47RH is a 4 speed 7 rated (torque) rear-wheel drive hydraulically controlled tranny

47RE is a 4 speed 7 rated rear-wheel drive electronically controlled tranny

They starting using these types of identifiers in 1992


Cheers.

[greg@Lockitup]

Cool. I'm really wanting to find a manual tranny 94 to 98 model but from what I've heard it's needle in a haystack pickings on those..