4L80 - Th400 output shaft
4L80 - Th400 output shaft
🆕 Never used. Only installed once for mock-up and measurement.
💸 grab a new shaft, ready to ship.
🔧 Fitment:
✅ TH400 gearbox
✅ 4L80E conversion
✅ Perfect for performance builds, trans swaps, street-strip setups
💥 WHY THIS PART?
-
Brand new, no wear, no fluid run — just measured and shelved
-
Hard-to-find shaft, ideal for TH400 to 4L80E conversion setups
-
No waiting, no backorders — ready to ship or pick up
-
🏁 Perfect for Transmission builders & gearbox tuners
-
Drag & Street builds
-
🔧 DIY'ers chasing reliability & value
#TH400 #4L80E #TransmissionSwap #GMgearbox #DrivelineUpgrade #DragBuild #StreetCarLife #GearheadApproved #PerformanceParts #SwapLife
Shipping cost is based on weight and destination. Just add products to your cart and use the Shipping Calculator to see the shipping price.
Boost Doc prides itself on customer service, and we want happy customers and will provide a repair, replacement or refund for faulty products.
We will not refund if you simply changed your mind, found it cheaper somewhere else, decided you did not like the purchase or had no use for it.
But you can choose a refund or replacement if an item is found to be faulty.
