Welcome Bud,
The numbers are stamped on or near the mounting flange at the same orientation
as the brake line tee. A 3.7 will have the ratio 11/41, a 3.9 10/39. A later
1500 is likely a 3.7. You can find this info as well as a as more on my web
site in the tech tips section. Click the link labeled Spridget Specs.
http://www.gerardsgarage.com/GarageContent/Tech/TechTips.htm
The main web site page is http://www.gerardsgarage.com/FS_Garage.htm
Later cars did have larger as tanks, but I think that may have ben
tha case by '72, but I'm not positive on that one.
Gerard
At 8:41 AM -0400 6/8/03, Bud Osbourne wrote:
>I'm new to this list, but a 30 plus year MG/Spridget enthusiast. I'm
>getting ready to prep my '72 Midget for a trip from Pgh. PA to Portland, OR,
>in late July. I'm converting to disc wheels, as my wires are getting ready
>for a major rebuild and I don't want to deal with them on a long trip. I've
>got all the bits and pieces I need, but, I've long forgotten how to identify
>the dif ratio. I've got a later 1500 rear axle assembly, said to be a low
>mileage unit, that I'm hoping will turn out to be a 3:7 ratio. If I
>remember correctly, the ratio info is stamped somewhere on the dif carrier.
>However, I can't recall where. I also recall that the ratio won't be
>identified as 3:9, 4:2, 3:7, etc. What numbers am I looking for and where
>are the little rascals hiding?
>
>Also, am I mistaken or do I recall, correctly, hearing that the late 1500s
>had a larger gas tank than earlier cars? There will be some long stretches
>between gas stations, on the northern route, and I want my Midget to have
>some very long legs. The trip out will be leisurely, but the return will be
>as straight through (my 18 yr. old son and I will split the driving) as
>possible, to get back in time for The Roadster Factory Summer Party.
>Bud Osbourne
>
--
One meets his destiny often in the road he takes to avoid it.
~French Proverb
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