The 10-Speed Allison found in your 2020-2023 L5P Duramax is known for its smooth shifts and great performance while towing. However, it still leaves a bit to be desired when it comes to shifting in...
*Call for build times*
“MUST KEEP FACTORY TRANS TUNING / NO TRANS TUNING ALLOWED”
*Must use factory fluid / Dexron ULV*
The new Allison 10L1000 shares NOTHING with its predecessor the Allison 1000....
The Allison 10L1000 torque converter is a great design for a stock truck. However, adding more than 75hp will quickly overpower the stock clutch setup. Unfortunately, with the way this unit is made...
Allison 1000 Stage 1
500hp Max
Raybestos C-3 and C-4 packs with additional clutch count
Billet Torque Converter
Modified lock up valve
Transgo Trim Valves
New bonded pistons
New c-1 and c...
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