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Most Popular Transmissions TESTED & PROVEN. OUR MOST POPULAR BUILDS.

Need a transmission now? Peformance Diesel Transmission Stocking Dealers.

Gomer's US Diesel PartsGomer's US Diesel Parts
Diesel WorksDiesel Works
Poor Boys DieselPoor Boys Diesel
Diesel N' Automotive ServicesDiesel N' Automotive Services
Jags Pro ShopJags Pro Shop
Alley Diesel PerformanceAlley Diesel Performance
MVP DieselMVP Diesel

 
 

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LATEST BLOG POSTFor all the latest Randy's Transmissions content, including testing, reviews, and shenanigans.

04/ September

Is An Allison Swap Worth It?

While an Allison transmission may seem like a great upgrade, the disadvantages of retrofitting, troubleshooting, and cost often outweigh the benefits. Rather than complicating your setup with an extensive swap, invest in a properly built transmission that’s made for your truck.

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10/ June

Randys Transmissions Exclusive Distributor of New Alto G3 Clutch Power Packs for 47 & 48RE Transmissions

Randys Transmissions is thrilled to announce that we are now the exclusive home for the new Alto G3 clutch power packs for the 47 & 48RE transmissions.

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14/ January

How Did The 2015 Ram 3500 Cummins Dually Perform At Pritchett Canyon in Moab?

Hardcore validation testing on our AS69RC Stage 2.

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