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Old 11-01-2002, 11:45 PM   #1
72ChevyCheyenne
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Transmission Mount Question

After instaling the new big block the tranny mount is about 3/4" back from the mounting hole in the tranny itself. Is there a different tranny mount for the BB with a TH350?
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Old 11-02-2002, 01:12 AM   #2
bigjimzlll
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i didnt think the th350 came on the big block models..thought the th400 was the tranny of choice
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Old 11-02-2002, 02:15 AM   #3
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you canruna th350 but they are weak. I have a nice turbo 400 for sale for 150 bucks. the crossmember holes for a th400 should work fine. Are you sure you dont have the motor mounts installed on the frame backwards?
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Old 11-02-2002, 06:59 AM   #4
72ChevyCheyenne
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The motor mounts will only go 1 way. They are the 67-71 style.
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Currently: frame sand blasted and powdercoated, Inline Tube brake and fuel lines, Blazer tank in rear, Holley Red electronic fuel pump, Eaton posi with 3.42 gears, 2 1/2" drop front spindles, 4" drop rear springs with adjustable panhard bar, KYB shocks, ZZ 502/502 GM Performance crate engine, Zoops brackets and pulleys, Vintage Air, dual electric fans, Ram Air II hood and late model sport side bed.
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Old 11-02-2002, 08:54 AM   #5
72ChevyCheyenne
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I just went to the garage to measure it. The bolt holes in the tranny are 1 1/8" in front of the bolt holes in the mount.
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72 Cheyenne
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Currently: frame sand blasted and powdercoated, Inline Tube brake and fuel lines, Blazer tank in rear, Holley Red electronic fuel pump, Eaton posi with 3.42 gears, 2 1/2" drop front spindles, 4" drop rear springs with adjustable panhard bar, KYB shocks, ZZ 502/502 GM Performance crate engine, Zoops brackets and pulleys, Vintage Air, dual electric fans, Ram Air II hood and late model sport side bed.
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Old 11-02-2002, 09:02 AM   #6
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I think the bb stands sit in a different spot than the sb or inline stands, & like big jim posted the 350 T wasnt a factory deal in the bb trucks. You may have to redrill the holes in the frame for the trans crossmember to get things to fit. Good luck.....crazyAL
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