High Performance Transmissions

Every transmission, whether it's rated for 700 or 2500 HP, is built by one builder to insure unsurpassed quality of workmanship. There are no assembly lines at TSI.


Transmission Specialties' primary builder has over 30 years experience and unlimited knowledge when offering technical assistance to customers.

PROLINE 1000/1001

The ProLine 1000 and 1001 are excellent for footbrake applications where the HP is below 750. The only difference in the transmissions is the 1.82 vs. 1.76 gear ratios. Excellent starter transmission that can be modified to higher HP applications at a reasonable price.


Features:


  • 1.82 O.E.M. Gear Set
  • O.E.M. Input
  • O.E.M. Output
  • 6 Clutch Direct Drum
  • Billet Clutch Hub
  • Fully Manual (Forward Pattern, Valve Body)
  • High Flow PG Pump
  • Rated to 600 HP (ProLine 1000)
  • Rated to 750 HP (ProLine 1001)
PROLINE 2000
Transmission Specialties® - ProLine 2000 Automatic Transmission Assembly

The ProLine 2000 is designed for the bracket racer who uses a transbrake. It is rated to 850 HP and the perfect choice for the serious racer on a tight budget.


Features:


  • Prolite Transbrake
  • 4340 Hardened Input
  • New Clutch Hub
  • New Servo
  • 6 Clutch Pack
  • Stock 1.76 Carrier
  • Stock Case
  • High Flow PG Pump
  • High Performance Gasket & Seals
  • Rated to 850 HP
PROLINE 2500
Transmission Specialties® - ProLine 2500 Automatic Transmission Assembly

The Proline 2500 adds the “unbreakable” 1.80 straight cut gears into a stock PG output and carrier, plus a deep aluminum pan to the PL 2000. This increases the rating to 1150 HP.


Features:


  • Prolite Transbrake
  • 300M Hardened Input
  • New Clutch Hub
  • New Servo
  • 8 Clutch Pack
  • Stock Carrier
  • New 9310 1.80 Gears
  • New 1.80 Ring Gear
  • Deep Aluminum Pan
  • High Flow PG Pump
  • High Performance Gasket and Seals
  • Stock Case
  • Rated to 1150 HP
PROLINE 3000
Transmission Specialties® - ProLine 3000 Automatic Transmission Assembly

The Proline 3000 is the Proline 2500 model in a SFI Approved Aftermarket Case with the Stock Tailhousing.


Features:


  • Prolite Transbrake
  • 300M Hardened Input
  • New Clutch Hub
  • New Servo
  • 8 Clutch Pack
  • Stock Carrier
  • New 9310 1.80 Gears
  • New 1.80 Ring Gear
  • Deep Aluminum Pan
  • High Flow PG Pump
  • High Performance Gasket and Seals
  • SFI Approved Aftermarket Case
PROLINE 4000

The Proline 4000 has all the features as the PL 5000 but is built with at stock PG case. It is rated to 2000+ HP.


Features:


  • Prolite Transbrake
  • NASA Input Shaft
  • New Clutch Hub
  • New Servo
  • 8 Clutch Pack
  • 4340 Output Shaft
  • 9310 1.80 Gears
  • New Gear Housing
  • New 1.80 Ring Gear
  • New Pins
  • New Thrust Washers
  • Deep Aluminum Pan
  • High Flow PG Pump
  • High Performance Gasket and Seals
  • Stock Case
  • Rated to 2000 HP
PROLINE 5000

The Proline 5000 is our most popular transmission and is rated to 2000 HP. It includes all our best parts except those extreme HP options of the PL5500. The PL 5000 has been in more Big Dollar Bracket winner’s car than all the other’s combined!


Features:


  • Prolite Transbrake
  • NASA Input Shaft
  • New Clutch Hub
  • New Servo
  • 8 Clutch Pack
  • New 4340 Output Shaft
  • 9310 1.80 Gears
  • New 1.80 Ring Gear
  • New Pins
  • New Thrust Washers
  • Deep Aluminum Pan
  • High Flow PG Pump
  • High Performance Gasket and Seals
  • SFI Approved Aftermarket Case
  • SFI Approved Aftermarket Tail Housing
  • Rated to 2000 HP
PROLINE 5500

Designed for those racers who want only the best. This PG transmission has every feature available to withstand the horsepower applications up to 3000. It is state of the art technology, including CNC designed parts not available elsewhere.


Features:


  • SFI Approved Aftermarket Case and Tailhousing
  • Pro Mod Pump and NASA “Ringless” Shaft. The Pro Mod pump is rebuilt with new pump, gears and new hardened T-400 stator tube so cooler can be used.
  • “Ringless” NASA Input Shaft. Designed with steel recommended by NASA, this is the real deal.
  • 10 Clutch Drum. This drum uses 10 clutches and steels with an aftermarket hub.
  • 300M Hardened Output Shaft. 300M is 17% stronger than standard 4340 material.
  • 1.80 Straight Cut Gears and Ring Gear. Made of hardened 9310 material, these are the original “unbreakable” 1.80 gears.
  • New Gear Carrier
  • Prolite Transbrake Valve Body
  • Red Alto Clutches and Steels
  • Red Alto or Kevlar Band
  • Deep Aluminum Pan
  • Dual Ring Lip-Seal Servo
  • High Performance Gaskets and Seals
  • Newly Designed Thrust Washers to withstand High HP