Previously gear vendors th350 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Techx · 07-13-2017, 10:36 PM

I get kinda lazy sometimes especially on things I don't know a lot about. Instead of rebuilding my th350 I am thinking of buying a new one ready to go. I was also wanting to add the gear vendors over drive system. Does anyone know of a complete setup ready to roll.

**kwmech** · 07-13-2017, 10:44 PM

The majority of what I see is the Gear Vendors on the back of T400s. Probably have to have it all built, unless you can find something on Craigslsit

gator2511 · 07-14-2017, 12:20 AM

I put a TH400 in my 72 then installed a GV unit. Had to pull the transfer case and have the input bearing hole bored to fit the larger bearing and shaft on the TH400. Also needed an adapter for the tranny and had to shorten the rear drive shaft. Even if You don't change the 350 out I don't think you will find one that will install without some work.

Shaky · 07-14-2017, 07:10 AM

You could go to the gear vendors website and look at the TH350 kits:

http://www.gearvendors.com/ag3s.html

**GR8-68** · 07-14-2017, 07:17 AM

Heck by the time you pay 3 grand for that you might as well convert to a 4l60 or 80.

**dennislbrooks** · 07-14-2017, 07:44 AM

Agree with GR8. Unless you are drag racing or maybe pulling a heavy heavy load (400th + GV) and have access to a good inexpensive GV, I would go 200 4R, 700R4, 4L60, 4L80. I had a GV behind a 350TH- tail of np205, worked great but I would not trade it for the 700R4 in my 67 4wd now - about half the cost of a rebuilt 350TH and a GV.

I will not recommend any trans rebuilder to you but I got my 700R4 from Monster - works great. Button on lockup and works like a 5 speed.

Only place I would put a GV is behind a stick now --- sold mine to wife's brother in law for his 6.5 diesel behind a sm 465.

72MARIO · 07-21-2017, 09:00 AM

I had one behind a 400 one of the 2 worst things I did to my suburban its tied with my old air kit.

Swapped it out for a 4l80 so much nicer to drive now

07-13-2017, 10:36 PM	#1
Techx Registered User Join Date: Jul 2011 Location: Pea Ridge, AR Posts: 20	Previously gear vendors th350 I get kinda lazy sometimes especially on things I don't know a lot about. Instead of rebuilding my th350 I am thinking of buying a new one ready to go. I was also wanting to add the gear vendors over drive system. Does anyone know of a complete setup ready to roll.

07-13-2017, 10:44 PM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,650	Re: Previously gear vendors th350 The majority of what I see is the Gear Vendors on the back of T400s. Probably have to have it all built, unless you can find something on Craigslsit

07-14-2017, 12:20 AM	#3
gator2511 Registered User Join Date: Mar 2005 Location: tampa florida Posts: 776	Re: Previously gear vendors th350 I put a TH400 in my 72 then installed a GV unit. Had to pull the transfer case and have the input bearing hole bored to fit the larger bearing and shaft on the TH400. Also needed an adapter for the tranny and had to shorten the rear drive shaft. Even if You don't change the 350 out I don't think you will find one that will install without some work. Last edited by gator2511; 07-14-2017 at 12:22 AM. Reason: more information

07-14-2017, 07:10 AM	#4
Shaky Six in a row makes it go... Join Date: Mar 2009 Location: Vacationland: Maine Posts: 1,346	Re: Previously gear vendors th350 You could go to the gear vendors website and look at the TH350 kits: http://www.gearvendors.com/ag3s.html __________________ 67 C20 long step resto: http://67-72chevytrucks.com/vboard/s...d.php?t=342086 66 C10 long step build: http://67-72chevytrucks.com/vboard/s...=1#post3814790 CT to Alaska in a 67 C10: http://67-72chevytrucks.com/vboard/s...d.php?t=399224 “The height of sophistication is simplicity." - Clare Boothe Luce

07-14-2017, 07:17 AM	#5
GR8-68 Senior Member Join Date: Jun 2009 Location: Belews Creek , NC Posts: 4,220	Re: Previously gear vendors th350 Heck by the time you pay 3 grand for that you might as well convert to a 4l60 or 80. __________________ Larry It is easily overlooked that what is now called vintage was once brand new. "Project 68" paypal.me/ldgrant

07-14-2017, 07:44 AM	#6
dennislbrooks Senior Member Join Date: Feb 2004 Location: Williamsburg, Ohio Posts: 1,798	Re: Previously gear vendors th350 Agree with GR8. Unless you are drag racing or maybe pulling a heavy heavy load (400th + GV) and have access to a good inexpensive GV, I would go 200 4R, 700R4, 4L60, 4L80. I had a GV behind a 350TH- tail of np205, worked great but I would not trade it for the 700R4 in my 67 4wd now - about half the cost of a rebuilt 350TH and a GV. I will not recommend any trans rebuilder to you but I got my 700R4 from Monster - works great. Button on lockup and works like a 5 speed. Only place I would put a GV is behind a stick now --- sold mine to wife's brother in law for his 6.5 diesel behind a sm 465. __________________ 1942 Chevy 1/2 ton Rod, 1959 GMC 1/2 ton Fleet Stepside, 1967 Chevy SWB K10, 1985 Corvette Coupe 4+3, 2015 Chevy Duramax reg cab 4WD W/T Last edited by dennislbrooks; 07-14-2017 at 07:57 AM. Reason: words

07-21-2017, 09:00 AM	#7
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,051	Re: Previously gear vendors th350 I had one behind a 400 one of the 2 worst things I did to my suburban its tied with my old air kit. Swapped it out for a 4l80 so much nicer to drive now __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD



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