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Hi all, need to know a couple of things before i buy a pair of second hand disc's for my XB on friday. I'm buying the early XW-B disc's as they have the smaller hub to fit the rims I've bought. All i need to know is, how thick are the standard disc's supposed to be. And can the disc's from a borgwarner 8 1/4 diff fit on drum BW axles? As a mate broke both axles and bought a comlpete rear, i bought the other cheap and have heaps of drum axles lyin round. The carrier's the same but are the axles? CHEERS FOR ANY INFO
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no i don't believe they do. from memory they have different width bearings.
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Thats right the drum brake models have a tapered roller bearing while the disk brake models have a double row ball bearing.
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I think you're thinking of the 9" there. My disc brake BW diff in my ZH had tapered roller bearings.
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had a disc braked xe bw78 and pulled the axles to change bearings and they were wider than the bearings i had bought. the new bearings were for a drum 78.
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Sometimes they put an XY type tapered roller on the disk brake axle with a spacer. BUT factory ZH, both types of disk brake rear axles had the same wide (double row) bearings, I have had both diffs in my car and they run the same bearings and brakes whet
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hey bill, had a problem recently where i spun the bearing on my axle (xb 9") rather than find a new axle i found out a certain bmw bearing has the same outside dia but smaller inside. so it was just a matter of machineing the axle down a touch and pu
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I have glued a bearing back on before with pressed metal repair. Did they charge you double for it because it was a BMW bearing?
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