Koyo-bearing master kit for a Ford 8 inch rear with an aftermarket limited-slip carrier using 1.781 inch ID carrier bearings. Replaces Motive RA310RAMK.
Excel XL-1014-1 is a master bearing kit for the Ford 8 inch rear end when it is running an aftermarket limited-slip or locker carrier with the large 1.781 inch inside-diameter carrier bearings. The standard open Ford 8 inch carrier takes a smaller bearing, so this is the kit to match a posi or spool swap.
It includes Koyo tapered roller bearings for the carrier, front pinion and rear pinion positions (plus pilot where applicable), a crush sleeve or preload shim pack, a pinion seal, pinion nut, cover gasket or RTV, thread locking compound, gear marking compound and a brush. It replaces Richmond 83-1014-1 and 83-1014-4 and Motive Gear RA310RAMK and RA310RAMKT.
Use it during a ring and pinion install or a full rebuild: seat the new pinion races, set depth and preload with the new crush sleeve, mount the carrier on fresh bearings, then dial in backlash and read the pattern with the supplied compound before torquing everything down.
Measure the carrier bearing journal or check your carrier's bearing spec before ordering. A stock open carrier will not take these bearings.
| Part number | Excel XL-1014-1 |
| Axle | Ford 8 inch rear, aftermarket LSD/large carrier |
| Carrier bearing ID | 1.781 in |
| Bearings | Koyo tapered roller - carrier, front and rear pinion, pilot where applicable |
| Replaces | Richmond 83-1014-1, 83-1014-4; Motive Gear RA310RAMK, RA310RAMKT |
| Weight | 6 lb |
