Drivetrain› Automatic Transmissions and Components

Sun Coast Converters

Suncoast Converters 1.65 Ratio Extreme Planetary Assembly Kit - Short Shaft 28165G-06SP

$4,891.95

SKU: S02K 28165G-06SP

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

Moderate — 2–4 hours

Description

Sonnax offers a complete GM Powerglide planetary assembly kit with a 1.65 ratio. This kit is track-proven to 3,000 HP and is a direct replacement for Powerglide transmissions, requiring no special assembly or case modification. It is compatible with the Sonnax big input shaft system and Sonnax clutch drums, and features a high-capacity reverse clutch assembly and a 24-tooth billet drum flange.

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 28165G-06SP

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