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Next Day Air Shipping: UPS can deliver your TCM on the next business day (Monday-Friday) on orders placed before 3pm CST. Orders placed after 3pm CST will be processed next business day. This extra service is $70.00 (Offer is for within the U.S. For customers outside of U.S. please call us to place your order. 815-977-5865.)

Dynamically Updated
The quickest and most affordable solution to get your truck back on the road.
"Great product.  My truck was dead in the water with a bad TCM.  Ordered one of Dan's pretuned TCMs and received it  very fast.  Only took a couple minutes to install.  My truck is all fixed and has never shifted this good.  Thanks Dan."

- David J., AL
"My original TCM failed on me when I really needed my truck for a job I was on.  Local Chevy dealership quoted around $1,000 to fix it.  Ordered a new one from Dan's Diesel Performance and was back to work the next day.  Saved myself  a few hundred bucks and it works great with my programmer."

- Jim C., WI
"Highly recommend this product.  I was going to order a TCM online that was cheaper, but then learned that it would need to be programmed yet by a dealer.  That would have required more time and money to get my truck fixed.  I ordered a A50 from Dan's Diesel and installed it myself .  Saved me a bunch of time and money.  Plus the truck shifts nicer than it ever has.  Thank You."

- Tyler D., AK
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 P: (815) 977-5865