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