I put an M22Z behind a 469ci Pontiac engine in a 1966 GTO with 3.36s. Very happy so far! 12s on the BFGs. Shooting for its first 11s pass. I just put some Mickey cheaters on it. We'll see how it holds up to the newly realized torque. Thanks Jeff!

Happy customer from Europe here. I told Jeff about my beat up M20 I had in my Hot Rod behind a blown 350 sbc and what he would recommend for my Car. Recommendation was either a M22 or a M23 and the decision fell on this M23Z. I could not be happier. Instillation was as easy as it gets and a direct replacement of the old M20. It drives like a charm and works really (!) well. Shipping to Europe was also no problem but production of the transmission took long. I would definitely recommend his transmissions and would buy it again.

Update. I’ve Got the M22Z installed behind a mild built 283 SBC. In a 57 Chevrolet With 3:36 gears. It drives and runs like a different car! Made a world difference! I Love it!! Thanks for your help Jeff. You are the man!!

I bought a Muncie M22Z from Jeff and am very pleased with the unit. I had to wait a while but it was well worth it. The trans came professionally packaged in a crate safe and sound to my house. My Camaro now takes off like it has 4:11 gears in first but can cruise in fourth with the 3:08's Excellent experience! Would highly recommend!!

Have a63vette getting ready too throw some HP in it’s ass .Don’t want too mess factory T10 up.

Just wanted to give Jeff a big thanks for working with me on my project ,our time-line matched up great when I got to the point of the build where I needed the transmission he got it right out to me, Thanks Jeff for keeping us all going and having fun I really hope you are passing the trade on to the next generation we need more good builders to help us keep doing what we love to doing

Just ordered the M22Z ,can’t wait to get it put in my 57 Chevrolet. Jeff is super easy to do business with! If you want a bad ass Muncie 4 speed look no further!

Jeff is the man, built my M 23Z strong, standing up to a fairly stout 565 inch BBC no sweat, and it's got that rockcrusher whine that we all love, can't get that with a TKX! Really this guy knows his stuff, trans shifts great, love it. Thanks Again Jeff!

Have been running the Gasser Super Duty trans for over a year in my car now and it's working out great. Car is a 1963 Chevy II gasser set up for 1/8 mile. Jeff was very helpful with setting me up with the right gear spacing in the transmission, a rear gear ratio appropriate for my application, the proper clutch assembly to go with, and even a vintage Hurst inline shifter. It took some time to get the shift linkage set up perfectly so the shifter slides right into each gear (no fault of the transmission). Overall, I am happy with the unit. Check it out in action in the video below: https://youtu.be/-TJU3XnhMCg

you won't find an easier way to buy a muncie tha at Midwest muncie. Jeff Makes it ease to get one to you with no hassel. One of the few places I've done business with that takes the time and effort to get it right. He was always available to answer all my questions . Sorry Jeff it took so long Pleasure doin business with ya Old hot rodder working the m22 with joy!

Jeff always picks up the phone and never tries to rush you off. Just got my M23Z as promised in a nicely packed crate. Supply chain problems slowed things down a bit but Jeff came thru. Thanks again, Joe from Jersey. 69 Firebird 455, 4-spd, 3.42, 6-71