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Post by farmer on Apr 14, 2021 11:19:22 GMT
Is there any information on whether the five-stud rear axle was designed specifically for the Austin Healey BN1, or rather was it an adaptation of an existing part used for other BMC models, and perhaps used/tested on the early works cars? I read that production change over for the unit occurred sometime in the latter part of 1954, but haven’t identified a date; was it previously available for retro fitting? any help appreciated. Thanks.
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Post by bbh on Apr 14, 2021 18:58:34 GMT
Extract from "Original Austin Healey" by Anders Clausager ......
Rear Axle.
Two types of rear axle were found. The original type was the spiral bevel, 3/4 floating axle also found on the A70/A90 models, with a final drive ratio of 8/33 (4.125to 1). An alternative ratio of 8/33 (3.667 to 1) was optional.
From chassis number 221536 (Nov '54) it was replaced by a hypoid bevel, 3/4 floating axle, of a new standardised BMC design, also found on the Austin A90 Six Westminster. The ration of this axle was marginally higher at 10/41 (4.1 to 1).
Hope this helps
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Post by farmer on Apr 26, 2021 16:49:55 GMT
Many thanks, that's helpful
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