i want a new converter for my 65 2wd GMC. it has a TH400, but according to all the catalogs they either have a small bolt pattern or big pattern. i could get it with dual patterns, but that costs more. anyone know what i need? motor is a 350.
CK5
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Torque Converter bolt size?
- Thread starter Jonny-K5
- Start date
COCHEV
1/2 ton status
maybe go measure your flex plate and then campare it to the 2 patterns they are selling
big83chevy4x4
3/4 ton status
just about every flexplate i have seen are a dual pattern. can't remember what the pattern is but it should work.
I beleive "MOST" TH400's use the larger bolt circle pattern,there are some exceptions--I know the 500 caddy motors flexplate has only the large pattern,probably since its the only tranny GM put behind the RWD ones with the 500 motor--I realized this when I was thinking of putting the 500 I have in my C10,I would have had to put a TH400 converter in my TH350 tranny to be able to bolt up the caddy flexplate,if I was to use the original tranny in the truck. /forums/images/graemlins/crazy.gif
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maybe go measure your flex plate and then campare it to the 2 patterns they are selling
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i would, but my truck is about 2 inches off the ground so i gotta spend a half hour jacking it up to do anything. i'd rather figure it out without doing that. i think i'll hit up a summit tech guy, they usually know stuff like this.
maybe go measure your flex plate and then campare it to the 2 patterns they are selling
[/ QUOTE ]
i would, but my truck is about 2 inches off the ground so i gotta spend a half hour jacking it up to do anything. i'd rather figure it out without doing that. i think i'll hit up a summit tech guy, they usually know stuff like this.
