Powerglide
1.80 Ratio Premium Gear Set
Part No. 180S-K
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Sonnax offers complete GM Powerglide planetary gear sets in a variety of gear set options and configurations to ensure you get the performance you want without overpaying or sacrificing quality.
Track-proven to 2,000 horsepower, Sonnax Premium gears are an ideal choice when extra durability is needed at a reasonable cost in demanding applications. 1.80 Ratio Premium gear set 180S-K features premium-processed sun and pinion gears that are a big step up from standard case-hardened and tempered varieties. A top-quality material combined with a special heat-treating process results in gears with improved grain structure and stability that are tougher and more wear resistant.
- Top-quality sun and pinion gears deliver outstanding durability
- 12-Tooth billet drum flange is broached and matched to the sun gear for a precise press fit, no welding required
See chart and specs below to determine if this planetary assembly suits your application, or dial in options here to choose your build.
PremiumTrack-Proven to 2,000 HP |
ExtremeTrack-Proven to 3,000 HP |
|
| Sonnax Warranty | 2 Years (Gears Only) | 2 Years (Gears & Shaft) |
|---|---|---|
| Gear Material | 9310 Suns & Pinions | 9310 Suns & Pinions |
| Gear Process | Premium |
Advanced
Extreme Gears for Extreme PerformanceTo greatly improve the life of Extreme gear sets, the sun and pinion gear undergo the same advanced processing as assemblies developed for Formula 1™, NASCAR® and other high-end professional racing circuits: Advanced Process gears undergo a three-step process that takes aftermarket performance gear manufacturing to a whole new level:
|
| Shaft Material | 4340 | 300M |
| Shaft Splines | Cut Spline | Rolled Spline |
| Drum Flange | 12-Tooth | 24-Tooth |
| Ring Gear | Standard | Maximum Duty |
Applies to planetary assembly kits only
- Short Pinion Gears (3)
- Long Pinion Gears (3)
- Front Sun Gear
- Drum Flange 12-Tooth
- Rear Sun Gear
- Ring Gear
- Gear Process Level: Premium
- Ratio: 1.80
- Flange Tooth Count: 12
My Sonnax-equipped Powerglide transmission performed flawlessly through the ultimate torture test: HOT Rod magazine DRAG WEEK. The car went over 1,000 miles, pulling a TRAILER full of tools, parts, and equipment, PLUS racing five days in a row. The transmission was EASILY the strongest link in the chain!
D. Diesner Libertyville, IL