Check the listing for details. Aluminum Powerglide Performance 1.80 Ratio Premium Planetary Assembly Kit. Condition: New. Listed at 1025.52 USD. Aluminum Powerglide Planetery Kit Fits 1962-73 1.80 Ratio Premium Planetary Assembly Kit Part No. 28180G-01 Sonnax offers complete GM Powerglide planetary assemblies in a variety of gear set options and configurations to ensure you get the performance you want without overpaying or sacrificing quality. Each comes fully assembled and ready to install. Track-proven to 2,000 horsepower, Sonnax Premium planetaries are an ideal choice when extra durability is needed at a reasonable cost in demanding applications. 1.80 Ratio Premium planetary assembly kit 28180G-01 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 durabilityHigh-strength output shaft resists twisting and breakageBolt-together carrier for ease of serviceContents: Carrier Assembly & Output Shaft Short Length, 4340 ShaftFront Sun Gear & Drum Flange 12-ToothRing Gear Specs: Gear Process Level: PremiumShaft Length Option: OEShaft Material: 4340Ratio: 1.80 Flange Tooth Count: 12 Please visit our store for more great parts for your transmission!