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Re: What is needed to swap a SM465 in place of a 3 sp??
3 speed synchronized tranny has the same bellhousing as a SM465... my K20 has a 3 speed bellhousing on it (long story)
however, the pre 69ish unsynchronized 3 speeds (little short thing, i can try to get pics) has a different bellhousing. the bottem two bolts are wider, not in line with the top ones.
also, a SM420 uses a different bellhousing than a SM465... the input bearing retainer is smaller on a SM420
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ASE Master Certified-GM Trained-Mechanic
1968 Chevy C30 157" WB Wrecker
1969 Chevy CST/10 SWB
1971 Chevy Custom/10 (first truck) 350, NV3500 5 speed
1971 Chevy K20 Custom Camper 4x4 350 TBI, SM465/NP205
1974 Chevy Custom Deluxe/10
1979 Chevy Custom Deluxe K10 farm truck beater
1989 Chevy K2500
Quote:
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Originally Posted by Alan Jackson, Cause I'm a country boy
35s whinin on the asphalt, grabbin mud, throwin up some red dirt
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R.I.P. Michael Stilts... I will always love and miss you brother! (9-12-80, murdered 4-9-05) 
Last edited by Blue_71; 08-25-2008 at 01:44 AM.
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