Mr Diesel is the BEST place to take a diesel ever! I have taken my 2000 F-350, my husband's 2014 Dodge 3500, both my sons' 2014 Dodge 2500 and 2008 Dodge 2500! Every time it's excellent service and below estimate! I'm gonna have to start taking my gas vehicles there too! - Wanda D. (5 star review on Yelp)

Straight forward bids and fixes stuff when very seldomly it's not 100% the first time. I've taken trucks to George many times and he's always been fair! - Nate D. (5 star review on Google)

I don’t trust taking my truck anywhere else! This shop has taken care of me time and again. These guys have so much knowledge and skill. They provide the best work with the most integrity. - Nick M. (5 star review on Google)

Was in town working when my truck suddenly started leaking exhaust pretty bad, it was preventing turbo compression. Came in on a Friday morning with no appointment, notice or anything, and I was expecting to have to leave my truck at least through the weekend. I got a call a couple hours later...my truck was ready... not only that, the price was unbeatable!! - 5 star review on Google

George and his staff are first class. Very knowledgeable and quick to get you in and out. They deliver quality service at a good price. Highly recommend if you need a diesel mechanic in Cheyenne area. - Josh F. (5 star review on Google)

If you have a diesel, this is the only place to go for service. They have worked on my 7.3L twice and both times have been top shelf. They are above all, honest and will not try to do more than is needed. What they do is also done right and complete. My truck has never run better and nobody will work on my truck but Mr. Diesel. To have a good diesel repair shop that you CAN trust is worth everything. - David W. (5 star review on Google)

6R140 Transmission

Jasper Engines and Transmissions is proud to announce their expanded availability of the remanufactured Ford 6R140 RWD and 4WD transmissions. These 6-speed transmissions are electronically-controlled and are available for a variety of vehicles. This expanded transmission line is available for the 2015-2019 6R140 F250, F350 6.2L, and F350 6.7L (RWD & 4WD).

GM 6T70

Jasper Engines and Transmissions is proud to announce their expanded availability of the remanufactures GM 6T70/6T75 FWD and AWD transmissions. These 6-speed transmissions are electronically controlled and are available for a variety of late-model GM vehicles. This expanded transmission line is now available for the 2013-2017 Enclave, Acadia, Traverse (3.6L FWD & AWD), Terrain, and Equinox (3.6L FWD); 2013 Equinox (3.6L AWD); 2013-2014 Terrain (3.6L AWD); 2013-2015 SRX (3.6L AWD), 2013-2016 XTS (3.6L FWD) and the 2014-2016 Impalas and Lacrosse (3.6L FWD).

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