Chevy GM Powerglide Aluminum Tailshaft Housing with Roller Bearing - TH400 Yoke the IAC valves adjust the

the IAC valves adjust the airflow to improve motor idling

great looks

28 Spline Oversize Pinion Bearings:PCE207

The Speedmaster shift selector shaft is built with sturdy

Note: The 52000/52001 manifold is a stock replacement/street legal part for 302

Chevy GM Powerglide Aluminum Tailshaft Housing with Roller Bearing - TH400 Yoke the IAC valves adjust theThis Speedmaster tailshaft housing are designed to fit the stock GM Powerglide transmissions and accept a TH400 yoke. They are five times stronger and more ridged than stock because they are made from aircraft grade aluminum alloy, thicker walls, and more triangulation than other manufacturers. They also include a roller bearing at the end of the tailshaft which is lubricated by our reworked passage for the yoke and rear bearing assembly.