On Sun, 7 Feb 1999, Susan and John Roper wrote:
> Would appreciate wisdom from more experienced listers. Is there a
> marking on TR4/4A rear axle housings that reveals the gearset within?
> If so please tell me where to look and how to read it. Thanks, John
On the TR4 rear axle, look for the serial number stamped on the top of the
flange for the rear cover. You'll need a skinny head or a mirror if the
axle is in the car! If the serial number starts with "BT", the ratio is
3.7:1. If it starts with CT, it's 4.1:1. Unless, of course, a previous
owner has installed a different ratio in it.
If I remember correctly, on the solid axle TR4-A the serial number is
stamped on top of the forward extension (the pinion housing), but I don't
know if the "BT" versus "CT" still applies.
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Chip Old 1948 M.G. TC TC6710 NEMGTR #2271
Cub Hill, Maryland 1962 Triumph TR4 CT3154LO
fold@bcpl.net
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