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

Got my M23 last summer from Jeff , no problems trans went in prefect. Don't expect a trans like this to shift smooth untill it breaks in. took about 400 miles to get there. Thanks Jeff. steve, Chicago

This M22Z trans was built for my 1970 Chevelle SS 402 bb stock configuration which had a frame off restoration 7 yrs ago. Changed from auto to manual. This made the Chevelle much more enjoyable to drive, a huge performance enhancement, gets the cam in the rpm sweet spot. Conversion looks identical to stock since most parts are all stock bolt-ons. You can use a lower numerical gear to bring the highway rpm down and still have better than stock ratio performance. The sound of the M22Z is awesome, just like the old days. Jeff is a great guy to deal with, many years of experience. Awesome packed in a wooden shipping crate. Best money I have spent on my Stock restored true SS Chevelle. Thanks Jeff

You do the n24 Slick Shift Clutch-less to?

What shifters work with it? Will the Long in line shifter work?

After a summer of using my M23 I'm really happy, it sounds amazing and shifts like silk. Great product and support from Midwest. Thanks

Thanks Jeff! I replaced the over worked blown up M20 in my 1969/427 Corvette with a Midwest M23 super duty. It fit perfectly, shifts and runs so much smoother than before. Working with Jeff was great he had my transmission built and shipped in 7 days. I recommend Midwest transmissions to all my classic cars buddies and friends.

My new M23 Super Duty is PERFECT! Jeff, you REALLY came through and I could not be happier with this new transmission and all the personal, technical help you provided me! ALL of your help and technical guidance you provided me with how we should set up the gearing ratios just turned out awesome, and I finally luv running this hot rod through the gears with this M23! And ALL your recommendations for the new clutch assy, mounts/brackets for reverse lights, QuickTime bell housing, Hurst shifter - and your personalized technical support are so greatly appreciated .... the results are phenomenal! The transmission performs and shifts PERFECTLY! Finally no more grinding issues shifting from 2-3 like I had with my TKO 600!! Thank you again Jeff, I could not be more pleased with my M23 and every expectation that I had was exceeded - thanks to you! Rob Burchett

Jeff is great to work with. When you call he answers the phone. I called with many questions about his M23 Super Case including bolting on a Gear Vendors overdrive. Jeff really knows his stuff and recommended the proper ratios for my project. I especially liked the fact that his M23 won't get hot on a road course even without an external cooler and for a transmission that handles real power the price ain't bad either. I ordered the GV overdrive and had the housing sent directly to Midwest Muncie. I am very happy with how cool it is and the obvious attention to detail and quality Jeff puts into his Muncie. I can't wait to get my '66 Chevelle on the road and on the track!

Recently ordered my M23 Jeff was a very nice person to talk to told him exactly what I had and what I like to do in my 68 Chevelle with a zz502 told me exactly what he was going to do I can hardly wait my M21 did not last a thousand miles???? I am an old guy and love smokers slamming gears hard !!????

Ordered my M23 in November and can't wait to hook up between a ZZ502 and a new 9"Ford rear end. I hope she whines and whines sweet music all day long, no radio needed! Ordering was a breeze with Jeff

Recently installed this Midwest Muncie M23 in my 72 Buick Skylark with a 462 big block. Very nicely built piece with positive shifts. The gear ratios as spec'd by Jeff are perfect for my rear end gearing/tire size combination. No more worries about breaking that old stock cased Muncie with sticky tires!!! Had a bit of a lead time, but worth the wait. If a transmission builder is that busy, there's a reason for it...

Hi Mark, Yes I do have customers using the M23 Slick Shift on the street and track. I didn't know if they allow you to use it in your class. Most Gasser classes need to be clutched. Thanks Jeff

Hi Mark, Yes I do have customers using the M23 Slick Shift on the street and track. I didn't know if they allow you to use it in your class. Most Gasser classes need to be clutched. Thanks Jeff

boy I sure wish that trans was in my KING RAT 55 Jeff clutchless? can that be driven on the street?

Decided to stray from the herd of Jericho's and Tex101's. I have run them in my Gasser in the past. I got a Gasser Super M23 and clutch setup for my Tri-5 big block. This trans is outstanding with the customized ratio's Jeff recommended. I think there's a new player in the game and I recommend this Gasser Super M23. Gasser King

I just got the m23z in my 70 GTO and I can't say enough about the transmission. Jeff is very knowledgeable and extremely helpful. I will be back for more transmission.

I just got my m23z for my 1970 Gto and the transmission is amazing. I can't say enough good things about Jeff and this transmission. Excellent customer service and extremely knowledgeable. He spent over a hour just answering my question and never pressured me buy. I will be a repeat customer for sure

have one in my 64 tempest 480 inch Pontiac shifts great great sound exel service