SSP Max Effort HP75 (Durango, Jeep SRT, RAM)

Sipple Speed and Performance Max Effort HP75 Transmission and Torque Converter Combo for RAM Trucks, Durango SRT8, and Jeep SRT8s.

We only offer one level of transmission the “Max Effort”. These are the race proven, fully built transmissions. Billet E Drums, Suncoast clutches all assembled to SSP’s precise specifications.

We don’t just throw a bunch of clutches in and hope for the best. There is a reason Sipple’s Max Effort Transmissions lead the lists online, and the winner’s circle at the track.


MAX EFFORT HP75 Build Service
All tolerances and specs set to MAX EFFORT standards.

  • Set Clutch & Hard Part Clearances
    • MAX EFFORT Specs
  • Bench Test Unit
  • Recalibrate Valve Body To MAX EFFORT Specs
  • Installed New Pan With Integrated Filter
  • Filled With Fluid For Plug And Play Install


  • Billet E-drum
  • Extra capacity performance frictions/steels
    • (A,C,E,D)
  • Upgraded stator bushing
  • Upgraded rear bearing
  • New seals & gaskets
  • New pan filter
  • New pump & chain
  • Valve body recalibration
  • Build new separator plate
  • New pump bolts
  • Proprietary modifications to input/output shafts
  • New output shaft nut


  • 2018+ Ram
  • Jeep SRT WK2
  • Durango SRT8


  • 2wd
  • 4wd


Shipping via Freight

Our transmissions and transfer cases are shipped via freight.

You will not be charged for shipping at checkout. We will contact you when your order is ready to ship with the best freight rate for your shipping timeframe.

Orders will not ship until payment for freight is received.

We do not ship internationally. International shipping is the responsibility of the customer.

For more information on SSP freight shipping policy, please see our knowledge base article: SSP’s Freight Shipping Policy.