M 21 Identification Help
Registered User
Joined: Mar 2013
Posts: 192
From: EDH California
P0P12B= 4spd, 1970, September, 12, M21.
Tail: 3857584= 1966-1970 passenger speedo, 27 spline.
Side cover: 3952648= short boss bolt on type w/ TCS switch on 3-4.
So in theory your main case should be 3925660 or 3925661.
Just a guess but I'm sure others will let me know if I miscalculated.
Bill
Tail: 3857584= 1966-1970 passenger speedo, 27 spline.
Side cover: 3952648= short boss bolt on type w/ TCS switch on 3-4.
So in theory your main case should be 3925660 or 3925661.
Just a guess but I'm sure others will let me know if I miscalculated.
Bill
Thread Starter
Registered User
Joined: Nov 2014
Posts: 1,554
From: Cincinnati, Ohio
P0P12B= 4spd, 1970, September, 12, M21.
Tail: 3857584= 1966-1970 passenger speedo, 27 spline.
Side cover: 3952648= short boss bolt on type w/ TCS switch on 3-4.
So in theory your main case should be 3925660 or 3925661.
Just a guess but I'm sure others will let me know if I miscalculated.
Bill
Tail: 3857584= 1966-1970 passenger speedo, 27 spline.
Side cover: 3952648= short boss bolt on type w/ TCS switch on 3-4.
So in theory your main case should be 3925660 or 3925661.
Just a guess but I'm sure others will let me know if I miscalculated.
Bill
It is indeed a 3925661 main case
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