1953 – 1990 General Motors NOS Speedometer Gear Adapter GM # 3925673

This new old stock speedometer gear adapter was manufactured by General Motors for use on the following models:

I have two new old stock speedometer gear adapter. Both in the box  GM # 3925673 but both have a different number stamped on the adapter itself one stamped 1565202 with  1 : 0.733 ratio the other stamped Stamped: 1565176  with  1 : 1.200 ratio  Are both or one of them in the wrong box? My guess is the ratios are so close that GM  boxed them as 3925673 adapters to use them up because they were so close to  1: 1.1111 ratio mathematically not to matter. So I am selling them as 3925673 adapters ang giving you the choice

Please specify the adapter stamped number of your choice when you make your purchase. Although both adapters will be shown in the images you are purchasing one adapter.

Buick 1979 (X),

Buick 1979-1983 (B, C),

Buick 1982-1985 (E),

Buick 1984 (B,D)

Buick 1985 (B)

Chevrolet 1953-1974 Corvette with 4-speed,

Chevrolet 1969 Corvette with 3-speed,

Chevrolet 1969 Chevy, Chevelle, Camaro with T.H., 3-speed, 4-speed

Chevrolet 1969 Pass with P.G. , T.H., 3-speed or 4-speed,

Chevrolet Pickup 1973-1978 CK-1, 2, Blazer, Jimmy  with 3-speed,

Chevrolet Pickup 1973-1978 G-1, 2, 3  with 3-speed,

Chevrolet Pickup 1975-1978 P-1, 2, 3  with ( M15, MC1) 3-speed,

Chevrolet Pickup 1973-1978 K-1, 2, 3, Blazer (K), Jimmy (K) with T.H.350,

Chevrolet Pickup 1973-1978 CGP-1, 2, 3, Blazer (C), Jimmy (C) with T.H.350,

Oldsmobile 1982 (B, C),

Pontiac 1978 -1981 (B, F, X),

Stamped: V    1.1111 ratio

Replaced by 

NOTE:  Images show the condition and what is included in the sale.

*This item may be re-packaged to protect it from shelf wear.