Currently rebuilding an 8.25 and can’t find anywhere the stud size for the backing plates. Does anyone know of the size or a part number? Thanks!

 

you might try this.....no guarantee that it is what you are looking for

J099 4313 8 BOLT, Rear Wheel Brake Mounting

 

Did these work for you? I’m also finding a zillion for a Dana 44 and none for the C8.25. Anyone know the part number? The pet number listed below is for the Dana 44 according to websites selling it.

 

I haven’t gotten around to it yet, had to put off my project for a while. If I remember correctly I was able to find the part number deep in a manual online but wasn’t able to match the part number to any active parts online. Aggravating for sure

 

From what I’ve read on ZJ disc swaps for the 8.25, the best method and the one I’ll probably do tomorrow is install them with 1.5" long 3/8"-16 Grade 8 bolts with lockwashers and nuts. might have to shave down the hex head a bit to fit next to the axel. TBD.

 

lmk if that works out for you. If it does I’ll probably take that approach. Not like it’s gonna come off anytime soon lol

 

fyi

The J0994313 Bolt is a genuine Mopar part used for rear wheel brake mounting. Here are some details about this bolt:

Part Description: Bolt, Rear Wheel Brake Mounting
Manufacturer: Mopar
Dimensions: 1.6 x 0.6 x 0.5 inches
Weight: 0.60 pounds
Fitment Type: Direct Replacement
Vehicle Compatibility:
Jeep Cherokee (1987-2001): Various models including 2-door and 4-door sport utility variants.
Jeep Comanche (1987-1992): 3-person cab models.
Jeep Grand Cherokee (1993-1996): 2WD and 4WD models.
Jeep Grand Wagoneer (1993): 2WD and 4WD models.
Jeep Wrangler (1984-1995, 1997-2005): Various models including Rubicon, SE, Sahara, and Sport1.
This genuine Mopar part is backed by the manufacturer’s 12-month, 12,000-mile warranty and is the smart choice for restoring your vehicle to factory condition performance

 

Thanks Bruce - but that doesn’t include what axel it’s designed for. Online information only mentions the Dana 44

• Jeep Wrangler (TJ) (1997-2006) w/ Dana 44 Rear Axle.
• Jeep Wrangler (YJ) (1987-1995); KDX; w/ Dana 44 Rear Axle.
• Jeep CJ-7 (1986) w/ Dana 44 Rear Axle.

 

 

worked perfect for a stock 9” drum on a C8.25. Grade 8 3/8”x1/2” bolts. Might have gone 3/4” if I was to do it again. But these match stock length plus total cost was $3 and available locally.