I'm looking for advice on the re-assembly of Sierra rear hubs when fitted to Haynes rear uprights ... please.

I'm unsure about the tapper bearings and their adjustment..... is the preload set simply by adjusting the retaining nut, i.e. nipping it up and backing of the locking the nut a touch ... or maybe ... is there a crush tube / shims that I am missing?

I didn't have the benefit of stripping down a donor to learn from.

Regards to all.

once the outer races are pressed in the sierra bearings are just torqued up and that's it - they are not adjustable in any way
(torques are in the workshop manuals)


these are actually a slightly more modern design that the ye olde adjustable taper bearings



they use nyloc nuts to stop them coming loose so you need new ones every time

also they have LH and RH threads - so you need to get them on the correct sides of the car so that they don't work there way loose as you drive




[Edited on 24/11/2014 by mcerd1]

Once the bearing is pressed in, the hub nut does the work.

these will explain it better than I can:

http://locostbuilders.co.uk/upload/Weel_Bearing_Cossie_Page_1.jpg

http://locostbuilders.co.uk/upload/Weel_Bearing_Cossie_Page_2.jpg

they are from the cossie manual but the principal is exactly the same, but I don't have the torque for the normal sierra ones to hand...

It's a lot, 250 lb/ft from memory so hang on that bar.

New bearings will feel like they are binding this will sort itself out in the first 50 miles.