TH350/400 Trans linkage - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**leddzepp** · 08-31-2008, 03:13 AM

I removed the linkage from my 72 truck which has a 700R4 in it now...I am assuming it is the factory linkage. Is there a difference if it is from a 350 or a 400? Thanks.

71 super · 08-31-2008, 09:18 AM

the rod is the same, but the frame pivot is different for the 400, you have the 350 version pictured, also 4x4 frame pivot is different than either of the other two

**Classic Bowties** · 08-31-2008, 10:55 AM

Quote:

Originally Posted by leddzepp

I removed the linkage from my 72 truck which has a 700R4 in it now...I am assuming it is the factory linkage. Is there a difference if it is from a 350 or a 400? Thanks.

No differences in the rod or frame pivot if we are talking factory linkage for a th350 or th400 w/SBC only, the differences (see pic) come into play if needing a shift linkage setup for a factory th400 w/BBC, the frame pivot, mounting location of pivot on frame and the main shift rod w/slight bend for firewall clearance which is also a bit longer due to the bbc's positioning of the trans in a more aft position.

gcburdic · 09-02-2008, 01:33 PM

Hey Classic Bowties....this is great info....thanks for the picture!!!

LOW DOUGH · 09-02-2008, 01:37 PM

yes, thank you

08-31-2008, 03:13 AM	#1
leddzepp Moderator Join Date: May 2007 Location: Southern Cal Posts: 20,037	TH350/400 Trans linkage I removed the linkage from my 72 truck which has a 700R4 in it now...I am assuming it is the factory linkage. Is there a difference if it is from a 350 or a 400? Thanks. Attached Images

08-31-2008, 09:18 AM	#2
71 super Registered User Join Date: Sep 2005 Location: Canton North carolina Posts: 3,080	Re: TH350/400 Trans linkage the rod is the same, but the frame pivot is different for the 400, you have the 350 version pictured, also 4x4 frame pivot is different than either of the other two __________________ 67 blue step side- bb 68 gold and white swb cst anniversary 68 custom swb hot rod Ls swap 69 swb cst 6 cylinder/ overdrive 69 black/black cst bb swb 70 orange and white cst Canada built truck swb bb 71 black and white super swb bb 71 red and white super swb 72 green and white super swb 4x4 62 nova wagon 400 series Ls swapped 68 Camaro 327/4 speed- 1 owner, original paint 66 Volkswagen bettle 69 auto stick Volkswagen Beetle

09-02-2008, 01:33 PM	#4
gcburdic Restoration Virgin! Join Date: Jan 2008 Location: Huntersville, NC Posts: 8,298	Re: TH350/400 Trans linkage Hey Classic Bowties....this is great info....thanks for the picture!!! __________________ Geoff with a G 1968 Chevy C10 SWB The Mistress 1972 Custom Deluxe C20 Suburban A Suburban Named Isabella 1966 Ford Mustang Mama's High School Graduation Present

09-02-2008, 01:37 PM	#5
LOW DOUGH I'M TRUCK CRAZY! Join Date: Oct 2006 Location: Sachse, TEXAS Posts: 1,737	Re: TH350/400 Trans linkage yes, thank you



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