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This is a discussion on Lowest geared transmission to fit chevy within the Performance forums, part of the General Discussion category; What is the lowest geared transmission one could find in a scrap yard to fit a 4.3l chevy flange. (1989)...
What is the lowest geared transmission one could find in a scrap yard to fit a 4.3l chevy flange. (1989)
SM465 or SM420
77 Chevy K20 - 80 GMC K2500 (in pieces)
90 Chevy K3500 - 93 Chevy C2500 (in pieces) - 94 Chevy K1500
let me rephrase, *(lowest geared manual transmission)*
SM465 or SM420. did you think i was lying to you?
77 Chevy K20 - 80 GMC K2500 (in pieces)
90 Chevy K3500 - 93 Chevy C2500 (in pieces) - 94 Chevy K1500
thanks greasedog, appreciate the help.
cheers
yeah, the granny gear of the SM465 is a real stump puller
ASE Master Certified Technician
2000 Silverado 6.0 4L80E 2wd
*RIP*1994 Z71 SCLB 355, Dart Heads, 10.5:1 CR, PM rods, CC XR270HR
SM465 = 6.55:1 1st gear
SM420 = 7.06:1 1st gear
77 Chevy K20 - 80 GMC K2500 (in pieces)
90 Chevy K3500 - 93 Chevy C2500 (in pieces) - 94 Chevy K1500
what did the sm420 come in?
i currently have the 465 for my Heep
new tow Rig rattles and smokes
'89 K5 trail rig
GM trucks from 47-67
77 Chevy K20 - 80 GMC K2500 (in pieces)
90 Chevy K3500 - 93 Chevy C2500 (in pieces) - 94 Chevy K1500
ok, so it was the pre cursor to the 465.
new tow Rig rattles and smokes
'89 K5 trail rig
holer jumpins the sm420 is geared lower then the t-18(bull low)
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