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90" rear hub bolt size


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The Land Rover spare parts catalogue says on page E47 that the bolts holding the rear drive flange on a 90" 1988 should be M10x50.

However on my 1988 90" TD we came across a set of bolts of a slightly smaller diameter. We tested with a known M10 nut which the bolts were too slim to fit. All the ten bolts were the same size. The axle is the standard drumbraked item with 10 splines in the 3.54 rover diff.

Of course in theory some prior owner could have helicoiled all drive flange bolt holes in the hubs to some size slightly smaller than M10.

Have any of you encountered a set of hubs that came from the factory with drive flange bolt holes there were not M10? Perhaps some hubs off a series vehicle would fit and have a different size?

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