Stillwater Auto Repair

Mon - Fri: 8:00 AM - 5:00 PM


Nitro Performance Transmissions

All NITRO PERFORMANCE TRANSMISSIONS are Dyno tested and have High Performance Kolene steels, Alto Red Eagle High Performance Frictions, heavy duty Kevlar band(s), Heavy Duty Tuftrided Race(s), Roller Clutches, copper pump and case bushings, extra sun gear bushings, choice of Valve Body Reprogramming Kit, choice of Output Shaft and more. Many extra options and custom builds available for all your high performance and heavy duty needs.

Our transmissions come with a detailed spec sheet.

Specs include: parts used, front end-play, rear end-play, clutch end-play, planetary end-play and Dyno pressures.

Turbo 350 Turbo 400
700R4 C4 C6
Powerglide 727

or any transmission you need!

*** We are looking for local drag racers and hotrodders to sponsor ****

If you are interested please contact [email protected] or call.

Certified Transmission and Total Car Care can rebuild your 4l80E to hold over 1500 horsepower

We have over twenty years of experience in building Heavy duty and high performance Transmissions.

Our 4l80e hi performance transmission can be built to with stand 3 levels of power.

up to 750 H.P.

up to 1000 H.P.

up to 1500 H.P.

If you are building a high horsepower car , and would like an overdrive transmission that will actually hold up to these high power levels.

Please contact us today to discuss you specific needs.

Certified Transmission is committed to ensuring effective communication and digital accessibility to all users. We are continually improving the user experience for everyone, and apply the relevant accessibility standards to achieve these goals. We welcome your feedback. Please call Certified Transmission (651) 275-9055 if you have any issues in accessing any area of our website.