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Randy Reyes - Allison 1000 6-Speed Stage 1 (500HP) Transmission + Billet Torque Converter


2011 - 2017 Allison 1000 6-Speed Transmission for LML 6.6L Duramax

Randy's Transmission Team


Randy's Transmissions are sent flat-rate freight. This freight cost covers freight to you and then back for the core return. Expedited shipping is not available for this item. Shipping address MUST be to an address with a loading dock or have a forklift. Please contact us first if other arrangements must be made.

Built to order: Typical build time of 5 days before shipping.

Warranty: Manufacturer 3-Year / 36,000 Mile.

This item requires a Core Return or Core Charge

Please see link below for more information

Pricing: $3,795.00

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Refundable Core Charge: $1,500.00
Flat-Rate Freight: $600.00


Randy Reyes - Allison 1000 6-Speed Stage 1 (500HP) Transmission + Billet Torque Converter

Part # 311241030-LML

Randy Reyes owns and runs a transmission shop in Tooele, Utah aptly named "Randy's Transmission". Randy's Transmission has garnered a well earned reputation for building some of the best performance and competition use transmissions you can find, anywhere. Using quality components and know-how that can only come from years of running their own 2000+ HP truck, you can see why.

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-2 clutches
  • New Bearings
  • RatioTek pressure kit

NOTE: use of a billet flex plate is recommended for Stage 1 and necessary for Stage 2 and UP!.

Warning: cores must be like-for-like - A 5-Speed core will not be accepted for a 6-Speed transmission or vice-versa.

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