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Re: '77 733i = '79 probably (archive)
[ Follow Ups ] [ 7-series (E23) Message Board ] [ Msg. Board FAQ ]
Posted by Jeff B. on February 11, 2002 at 18:36:16:

In Reply to: '77 733i with 5 speed, what gear ratio? posted by Rick Lamb on February 10, 2002 at 23:26:49:


I saw a '77 733i with manual shift in the parts yard today...

First, it's probably a '79 as '78 was the first year for the 733i and early production was 728 carburated.

Second, unless the gearbox was changed, it's a 4-speed (exactly the same as 5-speed except without the .81 overdrive gear). The original diff ratio should be 3.46, non-Limited Slip. Check it though, as LS was a very rare option and it could have been changed. Get underneath and scrape away grease to see numbers. LS has an 'S' on the case.

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