View Full Version : Lowest geared transmission to fit chevy
04-24-2008, 03:35 PM
What is the lowest geared transmission one could find in a scrap yard to fit a 4.3l chevy flange. (1989)
04-24-2008, 03:59 PM
SM465 or SM420
04-24-2008, 04:07 PM
let me rephrase, *(lowest geared manual transmission)*
04-24-2008, 04:09 PM
SM465 or SM420. did you think i was lying to you?
04-24-2008, 04:13 PM
thanks greasedog, appreciate the help.
04-24-2008, 06:32 PM
yeah, the granny gear of the SM465 is a real stump puller
04-24-2008, 07:26 PM
SM465 = 6.55:1 1st gear
SM420 = 7.06:1 1st gear
04-24-2008, 07:30 PM
what did the sm420 come in?
i currently have the 465 for my Heep
04-24-2008, 07:45 PM
GM trucks from 47-67
04-24-2008, 07:46 PM
ok, so it was the pre cursor to the 465.
04-25-2008, 06:13 AM
holer jumpins the sm420 is geared lower then the t-18(bull low)
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