Drivetrain› Shifters and Components

AMER SHIFTER

GM 400 TH SINGLE ACTION

$284.16

SKU: A08A ASCS1G423S1

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The AMER SHIFTER ASCS1G423S1 is a single action push button transmission shifter kit designed for GM TH400 automatic transmissions. It features a 23-inch single bend chrome-plated arm with a standard black knob.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandAMER SHIFTER
Part NumberA08A ASCS1G423S1

Buy with Confidence

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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