Jake's Performance - Performance Transmissions and Parts

Jake's Performance
Jake's Performance
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      • Contact Us
    • Converters
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      • Transmissions
      • Powerglide
      • Rebuild Kits
      • 4L80E
      • TH400
    • Tech Info
      • Tech Info
      • 4L80E FAQ
  • Home
  • Shop
  • About Us
    • Our Team
    • Terms & Conditions
    • Contact Us
  • Converters
  • Transmissions
    • Transmissions
    • Powerglide
    • Rebuild Kits
    • 4L80E
    • TH400
  • Tech Info
    • Tech Info
    • 4L80E FAQ

Rebuild Kits

Due to popular demand we are offering a select few rebuild kits for the DIY rebuilder. Our kits contain the same high quality parts that we use to rebuild our units. PLEASE understand that we are selling you the kit, not the rebuild. We cannot rebuild your transmission over the phone or email. We will provide instructions for our upgrade parts, but basic rebuilding questions will NOT be answered. If it is beyond your skill level, please have a professional technician build the transmission for you.

4L80 Rebuild Kit

This kit includes all the rebuild components we use to build our STAGE 2  4L80E units. It includes a master kit with High Energy frictions, new  steels, bonded pistons, and additional friction for the direct. New rear  band, front band, filter, full bushing kit, thrust washer kit, new  pressure regulator spring for additional pressure. New internal harness,  shift solenoids, and pressure manifold switch. HD intermediate snap  ring, rear torrington bearing, machined forward hub with torrington  bearing, 34 element sprag, and instructions/parts to make your own  hydraulic improvements without buying a valve body kit. It will include a  low roller clutch upon request and the style filter and band you need  for the year or your core.

TH 400 Rebuild Kit

This kit includes all the rebuild components that we use to build our Stage 2 TH400 units. It is an upgrade from the TH400 RACE FULL KIT. It will have a complete kit with High Energy frictions throughout, new steels, torrington bearing upgrades for the output shaft to case, and a machined forward hub with torrington, new OEM rear band, low roller clutch, 34 element sprag, full set of bushings, thrust washers, HD intermediate snap ring, high flow filter, paper/rubber set, and case connector.


NOTE: If you do not have a smooth type direct drum from an early TH400 or 4L80E, you will need one to use the 34 element sprag. Additional cost applies for a quality inspected used drum.

TH 350 Rebuild Kit

This kit includes all the rebuild components we use to build our Stage 1 TH350 units. Master Rebuild Kit with Borg Warner Tan OEM style frictions and high quality paper/rubber kit. Hardened intermediate sprag race, case vent, extra friction/steel for the direct, and some other upgrades. New intermediate and low roller clutches, full set of bushing and thrust washers.

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Terms & Conditions

By placing and paying for an order with us you are agreeing to our terms and conditions. Please read over them in full prior to ordering. 


All transmission orders require a 25% nonrefundable down payment. All parts orders that are cancelled or refunded anytime after paid will be subject to a 15% Administrative fee to cover Credit card fees, restocking, and administrative labor. Converter orders are not refundable, as those are built to specific customer vehicle and can rarely be used for another customer's build.

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