Exterior Components› Body Panels and Components

Sun Coast Converters

Suncoast Converters 4-5-6 Clutch Backing Plate 104140A-01

$149.23

SKU: S02K 104140A-01

In Stock
In Stock
Ships by Jun 16
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Sonnax 4-5-6 clutch backing plate is a performance part designed to minimize flexing and bowing in GM 6L80 and 6L90 transmissions. This heavy-duty steel plate is a direct replacement for OE components and helps prevent clutch plate distortion, especially when pressures exceed stock specifications. It is suitable for 2WD and 4WD applications and is designed for use in 2006 and newer vehicles.

Fitment

Fitment Guaranteed

Don’t gamble
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

BrandSun Coast Converters
Part NumberS02K 104140A-01

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.

View Full Return Policy