I know there is the early black label and the later blue, and that they have different input shaft. However, outside of this can I swap a blue tag zf from a 94 into my 96 directly? Or do I have to find a 96 blue tag?

 

I believe that a '94 is a blue tag....same as a '96. Either way, they're interchangeable w/the right accessories.

 

Some people feel that 93' was the transition year but I'm pretty sure it was 94'. i had a black tag 94' (not sure if there is a date anywhere hidden in the tag #'s) but there are also blue tag 94's.

 

You guys make me jealous with your manuals. Have always had stick fun cars. Bought a 96 auto. Should have known better.

 

There is no difference between a black tag input shaft vs a blue tag input shaft. The only difference is the guide tube.

 

I felt the same way about m y automatic until I put a proper torque converter in there. Made a HUGE difference in the fun factor. My auto is 2.56 rear and was a dog before the tranny got built. A stall TC really makes an auto car more fun.

 

mybad I misunderstood that part

 

Just make sure that your throwout bearing I.D. is the correct size for the guide tube.

 

No worries. There is a difference in input shaft is the length. The LT1 is shorter than the LT5.

 

Parts id #. The 084 indicates it is a 94 LT1 trans.

 

Get BOTH....I did. A 94 with the 6 speed and a 95 auto. Both are low mileage cars and a ton of fun to drive. I just had my 94 out yesterday and tomorrow my wife and I are taking out the 95. I couldn’t have a Corvette without a manual trans so I bought the 94 just a few months after the 95. I am looking for a ZR1 and a 96 GS to add to my collection. Just have to find the right cars. I like the C4 cars. It’s what I grew up with so I knew I had to own one someday. I own two now and want to own a few more. I just like to collect things I guess.

 

You are a wealth of information....thanks Chump.

 

oh thanks. i googled the entire part list number and found a great directory! now know for the future, thanks!!!!

 

Another difference between '94 and '96. The shifter on the '94 uses a reverse lock ring and the '96 is a "crash through" which just uses more pressure to move over. If you put a '95/'96 shifter on an earlier transmission, there is no protection for shifting to reverse accidentally. You have to be careful. The same thing applies to aftermarket shifters.

Most of the below is already stated in this thread, but to summarize:

Generally the '94 is a blue tag with the same input shaft and guide tube as the '96. Generally the guide tube was different in the '89 to '93 ZF's. Note the ZR1 ZF has a different length input shaft (all years).

The black tag ZF's have a more square cut gears that makes a little more noise and also has a slightly higher torque capacity rating than the blue tag ZF. In practice I am not aware of anyone having a problem with breaking the "weaker" blue tag ZF.

All of the L98/LT1/LT4 ZF's can interchange with a few accessories changed. For example the early ones had a different speed sensor. My '90 ZF sensor would not plug into the harness on my '96. There are also different speed sensor gears since some ZF's used different axle ratios. I also had to swap those in my '90 into my '96.

Try looking at ZF doc's web site. He has a lot of information on there about the differences, projects, etc. I have talked with him also and he is very helpful and a nice guy to deal with.

Good luck.

 

Use your auto the same as a manual without having to tire out your foot. Many autocrossers run auto, sit there and shift 1-2,2-1 over and over.

Me, I drove a manual little Mazda for 1.5 hours every weekday for a year. Done.

 

My 94 also has a Black Tag in it.

 

It's not quite the same; shifting the auto upsets the car since the shift is sudden and abrupt. Shifting the manual (correctly) is seamless.

 

Not the same at all, but thanks for the thought. I got used to stick, then upgraded a couple of my previous cars to the MGW shifter, which gives the car a positive, bolt-action rifle type shift, and then bought an auto. Oh well, an auto C4 is still better than no C4, but not by much

 

I don't have too much of a problem buying a C4 auto BUT only if it has G92 ...otherwise yeah i'd for sure get a manual over a GM1 car. My current 94' is a G92 G44 auto and it's just fine, sure i miss shifting my 95' but the 3:07 is a noticeable improvement over the base ratio and paired with an LT motor, it's plenty fun to drive. LS cars are totally different...i would only buy them in a manual.