I have a 91 TBI. IS my tranny the TH-700-R4? I want to buy a cooling tranny pan that can hold 2 extra quarts of fluid. Any brands that you guys recommend?

 

ya, you should have a 700. as for the tranny pan, you don't really need one

 

Yes it's a 700-R4. Moroso makes good pans.

 

Actually from 90-92 all automatics were 4L60's,which is about the same as 700r4s.

 

Actually all 3rd gen cars had 700R4 Auto's except the early years.

 

even if it were a 4L60, thats just a fancy new name for a 700R4, they made a few revisions n changed the name - in 84 they also made alotta changes, but they kept the same name 700R4 - go figure.

 

So how do you suggest I keep my tranny cooler? It's really hot over here and I'd like to get the most life out of my tranny.

 

The most effective way is to get one of these:

http://www.supersportperformance.com/transcoolers.htm

They do a hell of alot more than a transmission pan

 

But a combination of the 2 is even MORE effective.

 

That too, but I would choose a cooler over a pan - but if you want both, thats even better.

 

Well if it's one or the other I'd get the cooler.....better heat transfer (due to higher surface area) and you don't compromise your ground clearance.....but both is still better.

 

ok let me reword what I said for you to understand.. 700R4 were renamed 4L60s for 90-92..same animal

 

Do I get the 'added cooling' or the 'high performance'? This brand will fit our cars right?

 

I would go with a 26,000 GVW, or at least a 20,000 depending on what size u want it to be - there is no "fit" for tranny coolers, you simply need to run the hoses from the tranny lines and wire tie the tranny cooler to the X brace in front of the radiator behind the bumper cover - im sure some people can give you mounting tips, but most people just wire tie it onto the X Brace, you don't see it anyway.

Some people use the radiator's internal transmission cooler and add a seperate cooler just to help the radiator out - but by completely bypassing the radiator, you're removing all the transmission heat from the engine coolant so reducing both transmission and coolan temps - n face it, in a 3rd gen, the coolant can stand to lose around 40 degrees

 

But its true

700R4 = 4L60
4L60E = Electronic 4L60 which is a 700R4
4L80E = Electronic Overdrive of 3spd TH400