Drivetrain Automatic Transmissions and Components

Transmission Specialties, Inc

300M Input Shaft - GM 4L80 Trans

$350.39

SKU: T01H 4L80SH

In Stock
In Stock
Ships by Sep 2
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
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Overview

The Transmission Specialties 4L80SH is an automatic transmission input shaft designed for 4L80E transmissions. It features extended splines for increased engagement into the OD planet, enhancing durability. The shaft is crafted from premium-grade 300M material for superior strength and consistent performance under extreme loads. This component is sold individually.
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300M Input Shaft - GM 4L80 Trans

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandTransmission Specialties, Inc
Part NumberT01H 4L80SH

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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