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01-05-2003, 02:29 AM
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#1 |
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Jostrans68
Join Date: Mar 2001
Location: Bloomington indiana
Posts: 1,182
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Linkage Differences?
I am still toying with going to the th350 from my th400 what are the differences in linkages? thanks
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 [CGTW Memberformer 67-72 now with a 96 silverado |
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01-05-2003, 02:54 AM
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#2 |
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Recovering Truck Driver
Join Date: Mar 2002
Location: Orleans, NE USA
Posts: 1,883
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Don't quote me on this, but I think they are the same.
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67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska |
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01-05-2003, 04:18 AM
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#3 |
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"Trucks with Class"
 
Join Date: Jul 2000
Location: OLYMPIA, WA, USA
Posts: 8,136
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Not the same
They have different frame mounts, if that's the right word for them. The piece with the stub sticking out. 4X4 is also different.
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01-05-2003, 09:21 AM
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#4 |
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Registered User
Join Date: Nov 2002
Location: Middletown ohio
Posts: 1,058
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not to step on your thread but is it the same for a powerglid to a th350? that is what i am going to go to
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01-05-2003, 10:56 AM
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#5 |
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"Ochre Ogre"
Join Date: Apr 2000
Location: Springfield, MN
Posts: 3,558
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powerglides to th350 are the same.
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Bowtie Truck Stop Inc. Mid-West GM Truck Restoration Parts Supplier Your Key Parts, Auto Metal Direct, Dynacorn, and Goodmark dealer. like us @ www.facebook.com/BowtieTruckStop 1971 C-10 Suburban (Ochre) 1971 K-10 Suburban (Ochre) 1972 C-10 Suburban (Ochre) 1972 K-20 Suburban (Yellow- that just aint right!) Springfield, Minnesota 56087 |
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01-05-2003, 11:31 AM
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#6 |
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Registered User
Join Date: Nov 2002
Location: Middletown ohio
Posts: 1,058
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so all i have to do is change the shift indicator?
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01-05-2003, 11:36 AM
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#7 |
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Registered User
Join Date: Mar 2002
Location: Floodwood Minnesota
Posts: 1,057
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?
Could you even get a 400 turbo from the factory (67-72) in a 4x4??? My 72 heavy duty 3/4 ton 4x4 camper special has a 350
turbo hydramatic originally. Hence where would you get the correct linkage?
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1967 K30 Napco 292/SM420 original paint 30k miles 1968 K60 Napco 396/5spd. dbl frame 52" michelins 1969 K10 SWB GMC 454/4spd 6" 35's posi,hooks 1972 C30 longhorn,BB/AT,A/C,Tilt,Toolbox,lokr 1987 K20 Chevrolet Suburban. 6" lift. 5.7L/TH400 1979 K60 GMC Coleman 4x4, 427/Allison. |
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01-05-2003, 11:58 AM
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#8 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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TH-400 were not offered in the 67-72 4x4 trucks. They came out later.
The shift linkages are different for the 400. The 400's are wider at the shift linkage so the linkage has to be shorter. Jim |
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01-05-2003, 09:37 PM
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#9 |
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Join Date: Dec 1999
Location: Eastern - Manitoba Canada, Winnipeg
Posts: 4,369
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I've seen 400 with 350 linkage and 400 linkage ... It may have depended if it was BB or not also may be a variable... pulled linkage off a 69 that was 350 / 400 and it was the same as 350/350. Tranny was original in the 350/400.
As for the powerglide column, it may only have two positions for drive and may not work on a 3 spd auto column...better check it out.
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Senior active founding member. 70 3/4 ton GMC Suburban 4x4 250/4 spd. 71 1/2 ton Suburban Chevy 4x4, 350/350 72 Chev 1 ton tow truck 402BB w/Holmes 440 wrecker on propane 2005 FLSTSCI Harley Springer 85 FXSB Harley Lowrider 72 Triumph 650 Bonneville 5spd "Poor people don't have hobbies" Quote from wife. |
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