Yukon Gear 1541H Alloy Rear Axle For 8.2in and 8.5in GM Passenger
This listing is for owners of a classic Chevy or Pontiac muscle car with the 10-bolt rear who need one stronger axle shaft: a first or second generation Camaro or Firebird, a Chevelle, or an early Monte Carlo. The usual reasons are a shaft that broke on a hard launch, splines that twisted after more power went in, or a bearing surface so worn that new seals leak within weeks. Yukon part YA G1255802-SH is a 1541H alloy shaft with 28 splines and a 2.780 inch hub (brake pilot), sold as one shaft.
Both the 8.2 inch and the 8.5 inch GM passenger rears are C-clip axles. The shaft's inner splines drive it from a side gear, a C-clip in a groove on the tip holds it in, and the pinion cross shaft keeps it from sliding inward. The outer end rides on a roller bearing in the axle tube with no separate inner race, so the shaft journal takes all the bearing load. The wheel and drum or rotor bolt straight to the flange and center on the 2.780 inch pilot. 1541H alloy is a tougher, deeper hardening steel than the stock carbon shaft, which is why it is the common upgrade for a 10-bolt car that sees drag radials.
Cars of this age have no onboard diagnostics for the rear axle, so you confirm the failure by inspection.
With the rear on stands, pull the wheel and drum and check flange runout with a dial indicator. Drain the oil, pull the cover, remove the cross shaft lock bolt and cross shaft, push the axle in, remove the clip and slide the shaft out. Check the splines, the clip groove and the bearing journal. Then measure: Yukon's spec bullets list this shaft at 30-1/8 inches and its fitment notes say 30-1/4, so measure your old shaft from the inner end to the outer edge of the flange and call us if you land between sizes. If your shaft is closer to 31-3/8 inches, you want the longer Yukon 8.2/8.5 shaft, YA G1255804-SH instead.
Yukon's fitment table for YA G1255802-SH covers the 1968-1972 Chevelle with the 8.2 inch rear and the 1972-1973 Chevelle with the 8.5, the 1970-1972 Monte Carlo (8.2) and 1972-1973 Monte Carlo (8.5), the 1970-1981 Camaro with either the 8.2 or 8.5, and the 1970-1981 Firebird with the 8.5. Every listed application is 28 spline with a 2.780 inch hub. Not every one of these cars still has its original axle, so do not go by the model year alone. Count the splines, confirm whether the cover has 10 bolts, and measure the old shaft. Note that the Buick, Olds and Pontiac 8.2 used on other GM cars of the era is a different axle with different shafts. If anything is unclear, send us the year, VIN and your measurements before ordering.
| Brand | Yukon Gear & Axle |
| Part number | YA G1255802-SH |
| Fits | Yukon Gear 1541H Alloy Rear Axle For 8.2in and 8.5in GM Passenger |
| Type | Axles |
| 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.
Length. Both are 28 spline 1541H shafts for the GM 8.2 and 8.5 passenger rear, but this one is about 30-1/8 to 30-1/4 inches and G1255804-SH is 31-3/8 inches. Measure your old shaft to pick the right one.
Yukon lists it for the Chevrolet 8.2 in the Camaro, Chevelle and Monte Carlo and for the 8.5 in those cars and the Firebird. The BOP 8.2 is a different axle, so check before ordering.
No, this is one shaft. Order two if both sides need replacing.
The shaft uses a 2.780 inch hub pilot, the same as the stock GM 10-bolt car axle. Confirm the rotor center bore matches 2.780 inches.
75W-90 gear oil, filled to the bottom of the fill plug hole. Add limited slip friction modifier only if you have a clutch-type posi.
