Audi Quattro Ball Bearing Sizes

[Grastens]

I am in the process of bringing an original Audi Quattro back to runner status.

As ball bearings have become almost essential for a runner, I have been looking for the types that fit in the gearbox. However, the sizes of these bearings are not specified by the manual, and I have no means of measuring the gearbox bearings accurately enough to be fully confident in the figures I come up with. In addition, several bearings are flanged, somewhat complicating the search.

One such set I have seen consisted of 12 1150-size ball bearings, but nothing else. From what I have seen in both initial cleaning of my example and the manual, this 'Ur-Quattro' features a number of different sizes. I estimate only four of them to be 1150-type.

Has anybody else documented/remembered the appropriate ball bearings to fit in an Audi Quattro/Opel Ascona (and I suppose, Wild Willy/Willy's Wheeler) gearbox? Are flanged ball bearings very important to the kit? I am currently some distance away from my own Quattro, and so would appreciate any clarification and/or assistance.

P.S.: For restoration purposes, does anybody have a tip on how to remove the small spring pins from the wheel hubs? It always bothered me that I could never fully-refurbish the car so long as those pins kept me from disassembling the rear axle completely... Seeing the number of restorations that have occurred on Tamiyaclub, I assume it to be possible, but any solution eludes me thus far.

[oz-trash-cowboy]

If you are not confident to order sizes online, might be worth taking the old bearings to your local "ball bearing shop" ( google / yellow pages under ball bearing supplier retail ). They will be able to measure and match the size / type.