4L60E year differences and interchanges.

[CPT]

Are there any isssues with taking a 97 F-body torque converter and putting it in a 1994 corvette A4 transmission? Are converters interchageable?

Stock converter or aftermarket?

[Badazz 97 TA]

Stock converter or aftermarket?

Its 9.5in 2800 FTI lock up converter. Trying to sell it to a guy with a stock 94 automatic LT1 corvette.

[CPT]

Its 9.5in 2800 FTI lock up converter. Trying to sell it to a guy with a stock 94 automatic LT1 corvette.

It will work.

[Mjminino]

I have a 2001 5.3L suburban engine that obviously came with the 4L60E 4x4. I am looking for a 4x2 4L60E, what are all the years should I be looking at getting for that 2001 5.3L to allow the wiring harness to merry up with out issues. Thanks in advance.

[CPT]

I have a 2001 5.3L suburban engine that obviously came with the 4L60E 4x4. I am looking for a 4x2 4L60E, what are all the years should I be looking at getting for that 2001 5.3L to allow the wiring harness to merry up with out issues. Thanks in advance.

The 5.3 is an LS based engine so only an LS style bell housing will work. A truck between 99 1/2 and 2002 will work or an F-Body from '98-2002. If you're planning on having a trans built, the 4X4 can easily be swapped to a 2WD simply by changing the output shaft.

Frank

[Mjminino]

What exactly is stopping me from using that transmission instead of trying to locate a 4x2 one? I don't have a drive shaft for my 64 C10 created yet, so is it purely the drive shaft yoke that wont work because of spline count or whatnot?

[bigvanvader80]

I see in the original post that at least twice, it lists 4L60E for 93 models. I'm curious as to why. is there a mid model year switch to the '60E? I was under the impression that 93's came with 700r4/4L60. Could someone chime in as to what 700r4/4L60's are compatible? Maybe what mods are required for the different models? Truck tranny swaps, etc. I started a thread about using a 700 from a 2wd truck (88-92 modles) in my 93 but it looks like maybe this thread would be best for other 700r4 guys.


*edit* my mistake,it clearly says that 4L60E was only available in trucks for 93. Sorry. My fail. But, my question still stands about using a 700 from a truck in a 93 fbody.

[CPT]

I see in the original post that at least twice, it lists 4L60E for 93 models. I'm curious as to why. is there a mid model year switch to the '60E? I was under the impression that 93's came with 700r4/4L60. Could someone chime in as to what 700r4/4L60's are compatible? Maybe what mods are required for the different models? Truck tranny swaps, etc. I started a thread about using a 700 from a 2wd truck (88-92 modles) in my 93 but it looks like maybe this thread would be best for other 700r4 guys.


*edit* my mistake,it clearly says that 4L60E was only available in trucks for 93. Sorry. My fail. But, my question still stands about using a 700 from a truck in a 93 fbody.

The '93 F-Body used a 4L60 (not a 700R4). While the 2 are operationally the same, they aren't directly interchangeable. The '93 4L60 uses a round, 5 pin case connector. the 700R4 uses a square, 4 pin case connector. The reason for the different connector is the 4L60s unique pressure switch arrangement on the valve body that control converter clutch apply. The valve body holds 3 pressure switches on a '93 unit. The later 700R4s only had a provision for 1 switch. The '93 4L60 also had changes made for reverse apply. This made in necessary to design a "one off" valve body casting that had a 3rd check ball, whereas the 700R4 only had 2. The extra check ball required a separator plate with a coinciding hole. What many rebuilders even overlook is the fact that a '93 4L60 uses a 4L60E pump stator and reverse input housing. If any of these parts are mismatched, it can cause either a harsh or soft reverse engagement. If the electronics for the pressure switches/converter clutch aren't correct, it won't have converter clutch (lock up) apply. This will cause overheating and subsequent 3-4 clutch failure in the transmission.

[bigvanvader80]

The '93 F-Body used a 4L60 (not a 700R4). While the 2 are operationally the same, they aren't directly interchangeable. The '93 4L60 uses a round, 5 pin case connector. the 700R4 uses a square, 4 pin case connector. The reason for the different connector is the 4L60s unique pressure switch arrangement on the valve body that control converter clutch apply. The valve body holds 3 pressure switches on a '93 unit. The later 700R4s only had a provision for 1 switch. The '93 4L60 also had changes made for reverse apply. This made in necessary to design a "one off" valve body casting that had a 3rd check ball, whereas the 700R4 only had 2. The extra check ball required a separator plate with a coinciding hole. What many rebuilders even overlook is the fact that a '93 4L60 uses a 4L60E pump stator and reverse input housing. If any of these parts are mismatched, it can cause either a harsh or soft reverse engagement. If the electronics for the pressure switches/converter clutch aren't correct, it won't have converter clutch (lock up) apply. This will cause overheating and subsequent 3-4 clutch failure in the transmission.

Thank you for your thoroughly depressing, explanation, sir. You're the first source I've encountered that pointed the difference between the 700r4 and 4l60. Up to this point, I had been lead to believe they were identical. Thank you for your time.

[superspirit]

Awesome thread, Frank I thank you for all the information you have supplied. I have a question that has been partially answered in this thread but I need clarification for a 93. I am picking up a 93 truck with a bad 4l60e in it, I have a good 97 4l60e from a LT1 camaro. can I change the wiring valve body and separator plate from the 93 to the 97 and install the 97 trans in the 93 truck. I know this was answered for a 95 but need clarification for the 93. thanks in advance.