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06-09-2011, 02:16 PM
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#1 |
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Registered User
Join Date: May 2011
Location: Ashley, IN
Posts: 13
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th350 to sm465 trans
I have a 71 K20 with the th350 trans and I am going to put the sm465 4 speed in it. Will I need a different crossmember or anything else chassis wise to make the swap?
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06-09-2011, 06:27 PM
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#2 |
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Active Member
 Join Date: Dec 2004
Location: Tucson, AZ
Posts: 233
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Re: th350 to sm465 trans
Same crossmember because it bolts to the adapter. Might have to move crossmember fwd or back. If so may have driveshafts to shorten or lengthen. Need z-bar and bracket on frame. Your hump cover holes may need to be changed. I just replaced 3 speed/rockwell setup with 4-speed/205 in my 68 panel. had to move crossmember back 2 1/2 inches. Good luck........Rick
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