I have a 1993 GM 4L60 transmission with numbers: "3 P F M 1 6 1 P" The " P F " is suppose to designate the MODEL. ¿Does anyone know what MODEL " P F " stands for?? Thank you in advance, Mike
YES there is- My question was posted and still is..........................NO response as of yet but I'm sure SOMEONE surely must know what the MODELS were. In the picture posted it is " Y D "...........In my case, my serial # shows a " P F " Thanks for taking the time, Mike
I can't find this code anywhere. I wonder if it is a new factory replacement transmission. Factory replacement parts often have ID codes that are not indicative of a vehicle origin. Are you sure that it is a 4L60 and not a 4L60E? What does the electrical connector look like?
YES........I have a 1993 4L60, same year the "E" started. I have the 4 wire plug, of which ONLY 3 have wires coming to it. Also the 4 bolt tailhousing. I sent the ID info. I need to know what the MODEL stands for. In the instruction the MODEL is " Y D " and in my case, it is " P F ". The "M" stands for 700R4. Thanks again for your time, Mike
That's a 4L60 all right. Still no dice on the code. Sorry man. I've been digging. This might take a call to a good GM dealership. Any reason you need to know for sure? Build it up and go. It is the best of the best as 4L60(700R4)'s go.
NO........just curious! I purchased the replacement filter without any problems, of course I had the old one to go by. I just took a better picture of the ID number. As usual, they DON'T stamp them very clear. I think I had the wrong letters..............you take a look and decide.
I see 3BFM161B. The lat character is not a P, because there is a leg dropping, and it is not an R, as that leg would drop closer too the upright. In general, if it has a big letter K or an MD8 cast into the case, then it came in a truck (or a HD car application). If it does not, then it came in a car. If it has a funky tail housing with no place for a conventional transmission mount, then it came from a Corvette. If it has a "regular" tail housing, with a place for a mount, and a V8/90-degree V6 bell housing pattern, you are good to go. Contrary to popular belief, there is no internal strength difference between the V8 and the V6 transmissions with the 90-degree (SBC/BBC/4.3l-6) bell housing pattern. Of course, the 60-degree bell housing pattern (2.8l-6,3.4l-6,etc.) are weaker.
Well, getting closer thanks to you! It has a BIG MD8 stamped by the filler/dip opening. Attached is a picture of the mounting holes. Thanks again for sharing your knowledge and taking the time, Mike
These statements are not true. I have pulled "MD8" and "K" cases from B-body GM cars like Caprice and Roadmonsters with tow packages as well as heavy duty applications such as cop cars. I have also pulled "K" cases from 2 wheel drive V-6 S-10's which is what's currently in my car now.
Generally they are. What is your point? Pedantry is not welcome here. They go with the tow package, sometimes, but not always. GM also subb'd them in whenever they were short on other ones. Every rule has an exception. I have gone through about 50 ex-police cars and taxis (often ex-police cars) and found the MD8/K case in only about 10% of them.
I race them... have for years. Currently run an Art Carr "K" case (out of a S-10), billet 30 spline input shaft, manual shift, reverse pattern, recalibrated valve body, 9.5 convertor dyno'ed at 900 hp. Previous 700R4 was an "MD8" case (out of a Buick Roadmaster), 30 spline input shaft, Corvette servos, red discs, yada, yadda, yadda, dyno'ed at 525 hp. Just giving straight information.
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