Yukon Gear Yoke For GM 8.2in w/ A 1310 U/Joint Size. This Yoke Uses U-Bolts
Owners of 1964-1972 Chevelles, Impalas, El Caminos, Novas and first-generation Camaros with the Chevrolet 8.2 inch ten-bolt rear eventually run into the same problem: a pinion seal that will not stop leaking, or a yoke chewed up by a seized U-joint. The Yukon Gear and Axle YY GM8.2-1310-25 is a new replacement pinion yoke for that axle. It has 25 internal splines to match the 8.2 pinion and is machined for a 1310 series U-joint that clamps in with U-bolts, the retainer style most of these cars left the factory with.
The yoke is the coupling between the driveshaft and the ring and pinion. The rear U-joint of the shaft drops into its two ears and is held there by a pair of U-bolts and nuts, while the yoke itself is splined to the pinion and drawn up tight by the pinion nut. Because it sits right at the nose of the carrier, the polished neck behind the ears doubles as the sealing surface for the pinion seal. On a car that is fifty-plus years old that surface is often grooved, pitted or rusty, and a new seal cannot seal against it. Yukon specifies a 3.219 inch snap ring span and a 1.062 inch bearing cap diameter with outside snap rings, which are the standard 1310 dimensions.
With the rear wheels blocked, remove the U-bolts and push the driveshaft forward out of the yoke. Rock the yoke by hand: any rotational slop on the splines or in-and-out movement of the pinion points to a loose nut or worn pinion bearings, not just a bad yoke. Clean the seal neck and drag a fingernail across it; a groove you can feel will keep leaking. Measure the U-joint caps and the distance across the outside snap rings to confirm you really have a 1310 joint before ordering. If the pinion bearings are rough or the gears whine, the better fix is a full rebuild with the Yukon 1964-1972 GM 8.2 master overhaul kit and this yoke installed at the same time.
Yukon's application chart for this yoke lists the Chevrolet 8.2 inch rear in the 1964-1972 Bel Air, Biscayne, Impala and El Camino, 1966-1971 Caprice, 1967-1970 Camaro, 1964-1973 Chevelle, 1964-1968 Chevy II, 1969-1972 Nova and 1970-1972 Monte Carlo. This is the Chevrolet 8.2, not the Buick, Oldsmobile and Pontiac 8.2, which is a different axle with different parts. Many of these cars have had rear ends swapped over the decades, so count the cover bolts, check the pinion for 25 splines and confirm the driveshaft uses a U-bolt 1310 joint. If you are unsure, send us the car's year, model and VIN or axle code and we will check before it ships. You can browse more axle hardware in our hard parts section.
| Brand | Yukon Gear & Axle |
| Part number | YY GM8.2-1310-25 |
| Fits | Yukon Gear Yoke For GM 8.2in w/ A 1310 U/Joint Size. This Yoke Uses U-Bolts |
| Type | Differential Yokes |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
The Chevrolet 8.2 inch ten-bolt used in 1964-1972 Chevrolet passenger cars. The BOP 8.2 is a separate axle design and needs its own parts.
A 1310 series joint with outside snap rings: 1.062 inch bearing caps and a 3.219 inch span across the snap rings, held to the yoke with U-bolts.
25 splines, matching the Chevrolet 8.2 pinion. Count the pinion splines if your axle has been swapped or modified.
If the leak comes from a groove worn into the old yoke neck, yes, provided you also install a new pinion seal. A leak caused by loose pinion bearings needs the bearings addressed as well.
Yes. Measure rotating torque before removing the old nut and bring it back to that reading on reassembly. Do not simply torque the nut to a high number.
