Hi,
I believe the same size crownwheel and pinion was fitted in the
Standard Atlas and Leyland 15/20 - many of the other axle components are
the same. So if you ever want an ulta low ratio like 4.55:1, 5.00:1 or
even 6.66:1 (yes, really!), I may be able to help,
Cheers,
Bill.
Alan Crane wrote:
>
> According to my original sales brochure for the 67 TR4A, the standard
> rear end was 3.7, but 4.1 was an option with OD. So your 4.28
> probably
> is not factory original. However, I recollect that alternative gearing
> was available from the aftermarket and was relatively easy to install
> in
> the standard differential. The Triumph Competition Manual may talk
> about that.
>
> Alan
>
> >
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/ \ William Davies
/ \ Total Triumph Enthusiast
__ __________________ __
/ \ ______ ______ / \ 1959 Herald 948 Coupe Y128
\__/ \ || / \__/ 1959 Herald 948 Coupe
| A \____||____/ A | 1960 Herald 948 Saloon Export
| = H H = | 1961 Herald S
=====U==============U===== 1964 Herald 1200 Saloon
\________________________/ 1966 Herald 1200 Convertible
| | | | 1973 Spitfire MkIV
|_| |_| 1959 Standard Atlas Pickup
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