How do I know which is in my 91 T.A.? And is it a 4L60E? I might have to order a brand new one. Does anyonehave any suggestions on brands and or types of trannys? And can someone tell me the procedures for flushing a tranny. I'm having trouble with mine lately. Thanks!!!

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Ron Strayhorne
91 350 V8 T.A./ MSD ignition box & wires;Flowmaster cat-back exhaust;K&N filter;Crane perf. coil; semi-polished engine

 

l beleive the 700R4 is used up to 1992 and the 60E was used in 1993-1997, correct me if lm wrong though

 

Yeah you're right the 60E are in 4th gens.

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'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
FLOWMASTER
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
2:73 GEARS
Rebuilt 700R4, with manual valve body
B&M Megashifter
Soon to be installed
Exhaust Cut-Out
"There is nothing more addicting than speed"

 

Where on the car can I check to be sure? Back in 97 the tranny place that did the car said I had a 4L60E or they said 4L60. I'm not sure. The VIN# is : 1G2FW2381ML240396, if that helps. There also are no vacuum lines going to the tranny, that I see.

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Ron Strayhorne
91 350 V8 T.A./ MSD ignition box & wires;Flowmaster cat-back exhaust;K&N filter;Crane perf. coil; semi-polished engine

 

Also, does anyone have suggestions as to which company I should buy one from?

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Ron Strayhorne
91 350 V8 T.A./ MSD ignition box & wires;Flowmaster cat-back exhaust;K&N filter;Crane perf. coil; semi-polished engine

 

One more thing. Last month I ordered a DERALE tranny pan with the cooloing tubes for a 700R4 from Jegs and I had to send it back. I got it and it was way TOO BIG!!

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Ron Strayhorne
91 350 V8 T.A./ MSD ignition box & wires;Flowmaster cat-back exhaust;K&N filter;Crane perf. coil; semi-polished engine

 

You don't have a 4L60E.

 

i might be wrong, but i think that the 4L60 is the same as the 700R4. if it is the same as stock, there is no chance it is a 4L60E (electronic version used in 4th gens).

Pat

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'92 Firebird 305 TBI
3.73 Posi
ASCD Ram Air Hood
14X3 K&N
'00 WS6 Exhaust
'00 16x8 Wheels

http://www.geocities.com/birdv8

 

Can anyone explain that? Did they just send me the wrong one?

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Ron Strayhorne
91 350 V8 T.A./ MSD ignition box & wires;Flowmaster cat-back exhaust;K&N filter;Crane perf. coil; semi-polished engine

 

a 4L60 and TH700R4 are the same thing, GM changed the designation for the 700 to 4L60 in i Believe 1990.
If you had a 4L60-E you would also have to have a PCM installed to control the tranny.
the 4L60/TH700R4 was used from 1982-1993.
The 4L60-E debuted in 1994 (yes the first 4th gens had 700R4's).

 

That's pretty much right, from what I've heard, there is no difference between the 700R4 and 4L60, but the 4L60E is computer controlled. I have two friends, one with a '93 Formula, and one with a '94 Formula. Same options, but the one with the '94 had a performance/economy button, the '93 didnt, so the E made its debut in 94.

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1980 Camaro, '88 Police 350 engine, Headers, full exhaust, completely redone, my baby!
1988 Iroc-Z L98, MSD 6a, Accel coil, K+N's, Airfoil, Coolant Bypass, Flowmaster, Gears, Late model Bose, I like the 80 better

 

Yea, I used to sell the 4th gen. and the 4L60 is a 700-r4. The 4L60E is the electronically controlled. Hence the "E". And yes, 1994 was the first year in the 4th gen. It was in the Vette in 1992. FYI.

 

OK, I'm convinced that I have the 700R4/4L60. Can anyone reccomend a good brand to buy (maybe the part# too)? And any experiences they have had with an aftermarket tranny. Thanks for all the help guys!!!!!!

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Ron Strayhorne
91 350 V8 T.A./ MSD ignition box & wires;Flowmaster cat-back exhaust;K&N filter;Crane perf. coil; semi-polished engine

 

Why not just have your tranny rebuilt, with what you want to have in it.
Make sure to consider what you want out of it, will it have to handle high HP and do you want it to shift hard and do you like to manually shift. These are all options to consider along w/ many others.

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'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
FLOWMASTER
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
2:73 GEARS
Rebuilt 700R4, with manual valve body
B&M Megashifter
Soon to be installed
Exhaust Cut-Out
"There is nothing more addicting than speed"

 

I was gonna ask the same thing...

Hey Mark - I'm just over the bridge from where you're at... (in Lex Park)

KAM

 

I just had it rebuilt in '97, just to have it screw up now. I don't think I should have to rebuild it so soon after the last rebuild. Someone told me that you can only rebuild them so many times. Plus I don't trust anybody over here in England (USAF) to do it.

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Ron Strayhorne
91 350 V8 T.A./ MSD ignition box & wires;Flowmaster cat-back exhaust;K&N filter;Crane perf. coil; semi-polished engine