Yukon Gear Chrome Cover For 9.5in GM
A rusted, dented or weeping stock cover on a GM 9.5 inch rear axle is an easy fix, and this Yukon Gear and Axle YP C1-GM9.5 does it with a chrome finish instead of bare stamped steel. It is the 14-bolt cover for the semi-float GM 9.5 found under Silverado and Sierra 1500 and 2500 trucks, Tahoe, Yukon, Suburban, Avalanche, Express and Savana vans, Hummer H2 and older C/K and G-series trucks. If you are searching for a replacement cover for a 1500 or light 2500 with a 14-bolt rear, check the bolt count below and this is likely the one.
The GM 9.5 is a C-clip, semi-float axle with a 9.5 in. ring gear held to the carrier by 12 bolts. The rear cover closes the center section, holds the gear oil that the ring gear throws onto the pinion and carrier bearings, and protects the gears from rocks and debris. A cover that has been bent inward can touch the ring gear, and one that is rusted through at the sealing flange will let oil out until the bearings run dry. Yukon describes this part as the stock OE shape finished in chrome, so it bolts on in place of the factory cover without spacers or changes to the housing.
Count the cover bolts. The GM 9.5 semi-float has 14 cover bolts, while the GM 8.5 and 8.6 used in many of the same 1500 trucks have 10. The 10.5 in. full-floating 14-bolt in heavy 2500 and 3500 trucks also has 14 bolts but uses a much larger cover, and its axles have large bolt-on hubs at the wheel ends, so it is easy to tell apart. Silverado and Sierra pickups from 2014 on moved to a newer 9.5/9.76 axle with a 12-bolt cover that this part does not fit; our GM 9.5/9.76 12-bolt guide covers that later axle. If the leak is at the pinion or the axle ends instead of the cover, the noise and leak checks in our differential vs transmission noise guide will point you to the right part.
Yukon lists YP C1-GM9.5 for the GM 9.5 in. rear with a 14-bolt cover in both the 1979-1997 and 1997-2013 generations. That includes 1999-2013 Silverado and Sierra 1500, 1999-2004 Silverado and Sierra 2500, 2001-2007 1500 HD, 1997-2013 Tahoe and Yukon, 2000-2013 Suburban and Yukon XL 1500 and 2500, 2002-2013 Avalanche, 1996-2014 Express and Savana vans, 2003-2006 SSR, 2003-2009 Hummer H2, the 2008 Saab 9-7x and earlier C/K, R/V and G-series trucks back to 1979. Not every one of those trucks left the factory with a 9.5, so match the bolt count and the GM axle code on the glove box sticker, or send us your year and VIN. More axle parts are in our hard parts category.
If the gears or bearings are why the cover is off, pair it with the Yukon GM 9.5 master overhaul kit, a GM 9.5 4.88 ring and pinion for bigger tires, or the Dura Grip posi for 33-spline 9.5 axles.
| Brand | Yukon Gear & Axle |
| Part number | YP C1-GM9.5 |
| Fits | Yukon Gear Chrome Cover For 9.5in GM |
| Type | Diff Covers |
| 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.
Count the cover bolts. The GM 9.5 semi-float uses 14 bolts; the 8.5 and 8.6 use 10. You can also check the RPO axle code on the glove box sticker or send us your VIN.
No. The 10.5 in. full-floating 14-bolt has 14 cover bolts too, but it uses a larger cover. This one is only for the 9.5 in. semi-float.
No. From 2014 GM used a newer 9.5/9.76 axle with a 12-bolt cover, which needs a different cover.
No. Gaskets, bolts, fill and drain plugs are not included. Use a cover gasket or a gear-oil-rated RTV and your existing or new cover bolts.
It is chrome-plated steel in the stock OE shape, so it replaces the factory stamped cover without any clearance changes.
Fill to the bottom of the fill hole with the gear oil grade in your owner's manual, commonly 75W-90 on these trucks, with the vehicle level.
