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(806) 786-7239



Be first off the line or first from the light with a stall converter and TransGo shift kit upgrade for your 4R100.
Beef up your 4L60E with a Corvette servo, Sonnax boost valve, and pinless accumulators; great for providing extra clamping power for towing and a firmer 2nd-gear shift for racing.
If your Dodge 68RFE is in need of a durability upgrade, consider installing a triple-disk billet torque converter and billet input shaft to thoroughly handle your towing and horsepower needs.
  • Transmission Services
  • Transmission Computer Scans
  • Transmission Repairs
  • Rebuilt Transmissions
  • Remanufactured Transmissions
  • Shift Kit
  • External Coolers
  • Clutch Replacement 


Performance and heavy duty transmission parts to meet your towing or racing needs.
  • Performance Parts
  • Upgrades for Cars and Trucks
  • Stall Converters
  • Shift Kits
  • Cold Air Intakes
  • Performance Clutches
  • Billet Input Shafts
  • Heavy Duty and Billet Sprags
  • Deep Pans
  • Heavy Duty Drums
  • Inline Filters
  • Alto Red Eagle Frictions

12/12 Warranty with Overhaul

Call Us Today At ♦ (806) 786-7239

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AJ's Performance Transmission
5612 122nd St
Lubbock, TX 79424
Phone: (806) 786-7239

In Business Since 2006

Business Hours

Mon - Fri: 08:30 AM - 05:30 PM
Sat: 09:30 AM - 03:30 PM
Sun: Closed
After-hours drop-off and pick-up available by appointment

Payment Options