[stsalvage]

is it a auto or manual in 1960--1966 engs where 250s 283 and in 1966 was 327 trans missions where 3 on the tree speeds 4 speeds on the floor and the 2 speed automatic powerglide the 3 speed was a long gear box with 2 levers a 4 spped had 3 now i've seen 3 speeds with a over drive maening it has 4 spped but they called it a 3 speed with a over drive hope that helped

Rear end gears depends on what part of the country your from i've seen 299 gear in the cold states do to the snow and ice on the roads if you had a 373 you do a lot of spinning and sliding down the street and crashing into other cars not good on the gears