Hi Lani,
The answer is 'yes'. With the standard TD tires/gearing, the magic number
is 14.4 mph/1000 rpm. With the 4.55 gearing that becomes 16.2/K, with 4.30 it's
17.2/K. I seem to recall that you're up in the hilly country so the 4.55 is
probably a better bet for you than the 4.3 would be.
Lani Spahr wrote:
> I'm going to take advantage of a Moss Motors sale and buy the kit to fit a
> lower ratio rear axle into my 51 TD. My question is this: when cruising now
> I run around 3500 rpm at 50 mph. What kind of decrease of rpm can I expect
> with the 4.55:1 ration from Moss at 50mph? Secondly, it this a straight
> ratio calculation? By this I mean:
>
> 4.55/5.125 = 0.8878 thus 3500 * 0.8878 = 3107 rpm
>
> Cheers,
> Lani Spahr 1951 TD #5550
>
> Bruckner Symphony Versions Discography
> http://people.ne.mediaone.net/lspahr
--
Bud Krueger
http://home.ici.net/~bkrueger/
52TD
77MGB
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