Timken DRK312 Axle Differential Bearing and Seal Kit - Rear

Timken DRK312 Differential Bearing Kit

Timken DRK312 is an axle differential bearing and seal kit for rear axle service on select Ford and Mercury applications. It supplies the bearings and seals needed to complete differential rebuild work on vehicles with a 9 in. ring gear and 28-spline axle shaft configurations where listed.

Key Features

• Axle differential bearing and seal kit for rear differential service
• Timken DT Components rebuild kit for differential, transfer case, and transmission applications
• Standard kit format for targeted rebuild work
• Fits select Ford Bronco, Ford F-100, Ford Mustang, and Mercury Cougar applications
• Cross-references DK312, RA312, and SKF SDK312

Application Details

Compatible With 1970-1971 Ford Bronco, rear, 9 in. ring gear - 28 splines axle shaft; standard kit; 1969-1970 Ford E-100 Econoline, rear, 9 in. ring gear - 28 splines axle shaft; standard kit; 1957-1970 Ford F-100, rear, 9 in. ring gear - 28 splines axle shaft; standard kit; 1970 Ford F-250, rear, 9 in. ring gear - 28 splines axle shaft; standard kit; 1970 Ford Mustang, rear, 9 in. ring gear - 28 splines axle shaft; standard kit; 1970 Ford Thunderbird, rear, 9 in. ring gear - 28 splines axle shaft; standard kit; 1965-1970 Mercury Colony Park, rear, 9 in. ring gear - 28 splines axle shaft; standard kit; 1967-1970 Mercury Cougar, rear, 9 in. ring gear - 28 splines axle shaft; standard kit; 1969-1970 Mercury Marauder, rear, 9 in. ring gear - 28 splines axle shaft; standard kit; 1963-1966 Mercury Marauder, rear, 9 in. ring gear - 28 splines axle shaft; standard kit; 1967-1970 Mercury Marquis, rear, 9 in. ring gear - 28 splines axle shaft; standard kit; 1968-1970 Mercury Montego, rear, 9 in. ring gear - 28 splines axle shaft; standard kit; 1966-1969 Ford Bronco, rear, 9 in. ring gear; standard kit; 1969 Ford F-250, rear, 9 in. ring gear; standard kit; 1965-1969 Ford Mustang, rear, 9 in. ring gear; standard kit; 1957-1969 Ford Thunderbird, rear, 9 in. ring gear; standard kit.

What It Helps Repair

• Rear differential bearing wear or rough operation
• Seal leakage at the axle or differential assembly
• Noise from worn differential service components
• Rebuild needs during axle teardown on Ford 9-inch rear ends
• Service work on vintage Ford and Mercury driveline assemblies

Installation Notes

Verify axle shaft spline count, ring gear size, and vehicle year before ordering. This kit is listed for rear applications only and should be matched to the exact differential configuration shown in the fitment data. Professional installation and setup procedures are recommended for differential service.

Quality Assurance

Timken markets these rebuild kits through its DT Components line, which packages the bearings and seals needed for differential, transfer case, and transmission service. DRK312 is a standard kit version for the applications listed.