LS Swap Steel Transmission Adapter Bellhousing: Compatible with GM Manual/T5/TKX, Enhanced Strength Over GM 621, Fits Muncie T-10 & Tremec 5-Speeds, Hydraulic Throwout Only, Laser-Cut Precision

About this item Upgraded Construction: Steel Transmission Adapter Bellhousing designed as an enhanced version of the GM 621 bellhousing. Built with strength to resist common cracking found in aluminum bellhousings. Broad Compatibility: Compatible with GM 3 and 4 speed manual transmissions like Muncie T-10 and several aftermarket 5-speed transmissions by Tremec and Richmond. Also pairs seamlessly with standard 168-tooth LS flywheels, clutches, stock, and aftermarket LS starters. Optimized Design: Ensures minimal floor and tunnel modification during Muscle Car LS swaps due to its compact size compared to T-56, offering a convenient fit for classic car interiors. Precision Engineering: Features laser-cut, CNC-finished flanges ensuring a snug fit with engine and transmission. Constructed from durable .318-inch steel bellhousing flange with Compatible with Chevy LS engine bolt pattern and a .400-inch thick transmission flange with Muncie/Saginaw 4-speed bolt pattern. Hydraulic Clutch-Ready: Exclusively designed for hydraulic throwout bearings with no provision for a mechanical clutch fork. The bellhousing includes a 1.5-inch hole for hydraulic release bearing lines and comes with a block/cover plate, installation hardware, and a resilient black zinc plated finish. Made in-house at Speedway Motors for guaranteed quality.