What do you need to know about pinion Shim selection?
What do you need to know about pinion Shim selection?
Replacement bearing assembly must be same as the bearing assembly that was removed to allow use of spacer. Pinion Shim Selection Overview Ford Racing and Ford OEM gears do not use the same pinion depth method of setup as aftermarket gears. Shimming is done to compensate for differences in the machining of the axle housing.
Which is the correct drive pinion bearing adjustment Shim?
The correct drive pinion bearing adjustment shim size will locate pinion for proper tooth contact with ring gear. Selecting correct drive pinion bearing adjustment shim when installing a new differential ring gear and pinion can be done by using Pinion Depth Gauge Set 205-S127 (T79P-4020-A) as described.
How to rebuild a Ford 8.8 inch differential?
This Tech Tip is From the Full Book, FORD DIFFERENTIALS: HOW TO REBUILD THE 8.8 AND 9 INCH. For a comprehensive guide on this entire subject you can visit this link: SHARE THIS ARTICLE: Please feel free to share this post on Facebook / Twitter / Google+ or any automotive Forums or blogs you read.
How tall is the cylinder head on a Ford 6.0?
Minimum Head Height – 3.74” Maximum amount you can remove for a virgin head – .008” If you find that your heads need more than the .008” removed to clean them up, we do have cylinder head shim kits available. These kits will allow you to take up to .020 off the surface of the head while still maintaining valve clearance and pushrod geometry.
How tall are the pinion head shims on a Ford?
Next is the pinion seal oil slinger and seal that are pressed into the housing; and finally the input flange and nut. These are the pinion head shims that come in a typical rebuild kit. The total shim range is .010 to .038 inch. These shims can be stacked to achieve the correct height.
What kind of Shim do I need for 8.8 inch axles?
(This shim is what sets the pinion head mounting depth. If you do not have the original shim as a baseline, a .030-inch-thick shim is a good starting point for the 8.8- inch axles. If you are using another Ford gear set, all are really close and the original shim is a great starting point.
Why are there shims on a Ford F-150?
The thin steel shims allowed the oil gap between the block and cap at the bearing to be minimized, and more importantly, allowed the bearing cap to be solidly torqued to the block and maintain that condition. This allowed minimizing the thickness of the soft Babbitt bearing metal , as Ford intended in the original design. Why have shims at all?
What kind of shims are in Ford Babbitt bearings?
These are thin individual steel shims, not thick laminated brass shim packs. The front and center crankshaft main bearings also used similar steel shims (different shape than the rears). These shims are precision milled or ground to 0.002 – 0.0025 inch thickness each. The finish milling/grinding marks can be seen on the shim surfaces.
