This one-piece aluminum casting replaces the stock GM case and allows versatility when an adapter-style Ultra-Bell housing is used. Ultra-Case has an adjustable transbrake release; CNC-machined oil passages to increase oil flow and improve performance; and more material in critical areas to reduce flex around the shift lever, which lowers the chance of the case cracking. !

Features:

One-Piece Aluminum Casting

CNC-Machined Oil Passages

Increased Oil Flow

Reduced Flex

No Transmission Shield Required

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Some parts are not legal for use in California or other states with similar laws / regulations

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JW Performance 92310

Powerglide Ultra-Case SFI 4.1 certified

Part Number: 564-92310