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    Pilot Bushings for
    Ford Windsor V8 Engines

    A precisely sized pilot bushing is essential to proper manual transmission installation. It supports and aligns the transmission input shaft on center during clutch release.

    Ford Windsor Small Block crank bores are typically ~1-3/8” in diameter.

    Select your transmission

    T150 transmission

    T150 transmissions feature the same ~17mm pilot tip as many Ford transmissions. However, cutting the T150 pilot tip shorter is required to prevent bottoming in the crank bore and subsequent transmission damage.

    More details on this procedure are covered in the Novak Guide to Ford Small Block Swaps in Jeeps.

    PB-8731176
    T176 transmission

    Requires that the pilot tip of the T176 input shaft be shortened 5/8” and chamfered to prevent it from bottoming out in the crank. A cut-off wheel on a grinder will be required as well as personal protective gear. More Ford engine to T176 installation details are discussed here.

    PB-8731095
    AX15 transmission

    Two pilot sizes are used on the AX15: early (1988–1991) at ~19/32” diameter and late (1992+) at ~3/4” diameter. Always verify the actual size, especially on border years. If you have an external slave version it “should” be ~3/4”, but verify all the same.

    PB-8731095

    PB-8731357
    NV3550 transmission

    The NV3550 always features a ~3/4” diameter pilot tip.

    PB-8731357

    Don’t see what you need? Contact us — we may be able to source or machine a bushing for your application.

    Installation Requirements

    Alignment of a bellhousing

    Fits stock Ford Truck T18, T19 & NP435. The Ford Truck transmissions use a ~17mm pilot tip diameter. Always verify what you have before ordering.

    Removal of the old bushing and cleaning the crank bore is required prior to installation. There are a number of official and unofficial methods to remove the old bushing or bearing. Hydraulic removal using inserted grease behind the bushing (or a wet paper towel) and a precisely sized rod is a classic approach. Our preferred method is a slide puller available from your local parts store as a rental tool.

    A proper drift tool or driver is recommended for installation. Do not coat oiled bronze in grease, as this plugs its pores and prevents proper lubrication afterward. Soaking the bushing for a day or longer in clean engine oil prior to installation is preferred. Freezing the bushing and lightly warming the crank can ease installation. Pilot bushing and transmission input shaft damage are inevitable if the bellhousing and transmission are not centered concentric and parallel to the engine face. We recommend using a dial indicator to verify centering on the bellhousing bore.

    Also See