Seller notes

GM56 casting date of K18 (I believe that would be November of 1968) GM PN - 3869789 Non-Posi - 2 Series 12 bolt 41 tooth Ring Gear still Attached. Supports ~2.73/2.76 and down. Surface Rust is present. 30 Spline Drive gears. - Some of the teeth on the Drive Gears do show some pitting. Spider Gears look good. All gears inside do rotate when turned by hand. Needs to be taken apart, cleaned/blasted, and rebuilt. We have new and used ring and pinion gears available, please let us know if you are int...

Contact Us regarding this vehicle

Contact Seller on eBay

You will be redirected to eBay

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission.