Rock Crusher Four Speed Transmission Chevy

We are here for your questions anytime 24/7, welcome your consultation.

Get Price

I was just wondering how many different variations there are of the muncie 4 speed and which ones are best and for what reasons.I currently have an m22 rock crusher in my 56 chevy pickup, and have another m22 that was rebuilt about 6 years ago by my father but never used.I also have what i believe is an m21, but im not certain.

Online Message

If you are interested in our products, or what we can do to help you, you can always consult our customer service.


Quick response within 30 seconds for technical advice

Complete engineer dispatch within 24 hours

Maintenance free of charge within 12 months from shipment