Trans tailshaft length - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Already Gone** · 05-14-2019, 11:53 PM

A friend is interested in the TH350 trans, when I put the 700R4 in it, in my stock unmolested 1972 C10 with 350 engine and 3:73 rear gears if that makes a difference. He asked if the trans had a 6 or 9 inch tail shaft and I have no idea which one it could be. Does anyone know which it would be for my truck or could it be either?

**lolife99** · 05-15-2019, 05:49 AM

Quote:

Originally Posted by Already Gone

A friend is interested in the TH350 trans, when I put the 700R4 in it, in my stock unmolested 1972 C10 with 350 engine and 3:73 rear gears if that makes a difference. He asked if the trans had a 6 or 9 inch tail shaft and I have no idea which one it could be. Does anyone know which it would be for my truck or could it be either?

I think you are going to have to just measure it yourself.
Too many varibles of what could have been put in your truck over the years.

cherokeejohn · 05-15-2019, 06:14 AM

my 72 with the same setup, longbed, TH350, 373 rear gears,etc..., has the 6" tail. when i was searching around for a replacement at local parts yards and swap meets, i only saw the TH350, 6" shafts from the 71-72 trucks. the 9" was common also but the ones i found were from vans mostly

**Ironangel** · 05-15-2019, 06:51 AM

Both my 72 LWB C/10's were born with 350/350THM transmissions, both have 6" tail housings...

**Already Gone** · 05-15-2019, 09:57 AM

Thanks for the replys everyone.

05-14-2019, 11:53 PM	#1
Already Gone 70+ ( Old Skool Club ) Join Date: Nov 2003 Location: Saskatoon, Saskatchewan ,Canada Posts: 9,161	Trans tailshaft length A friend is interested in the TH350 trans, when I put the 700R4 in it, in my stock unmolested 1972 C10 with 350 engine and 3:73 rear gears if that makes a difference. He asked if the trans had a 6 or 9 inch tail shaft and I have no idea which one it could be. Does anyone know which it would be for my truck or could it be either? __________________ 1972 C10 Custom/Deluxe 613 Highlander 406/700R4 1999 White Tahoe LS 4x2 with Z56 Police Package 1992 K1500 GMC Suburban Members I have personally met: MusicMan70 - HeavyD - ChewyChevy67 - StingRay -71SWB4x4 - 67 Burb - DeadheadNM - too much stuff - bc65 - das601 " Circumsatances Do Not Change Responsibility " " The Sky is not the Limit, Your Mind is." Marilyn Monroe .. RIP Charlie Watts 1941 - 2021

05-15-2019, 06:14 AM	#3
cherokeejohn Registered User Join Date: Aug 2013 Location: Wasteminster, Maryland Posts: 409	Re: Trans tailshaft length my 72 with the same setup, longbed, TH350, 373 rear gears,etc..., has the 6" tail. when i was searching around for a replacement at local parts yards and swap meets, i only saw the TH350, 6" shafts from the 71-72 trucks. the 9" was common also but the ones i found were from vans mostly __________________ 72 C/10, LWB, 5.7, Auto, with A/C F.B.I = Full Blood Indian Appalachia/Eastern Cherokee,"Tsalagi"

05-15-2019, 06:51 AM	#4
Ironangel Senior Member Join Date: Feb 2010 Location: Falls City, Nebraska "100 Miles From Nowhere" Posts: 2,219	Re: Trans tailshaft length Both my 72 LWB C/10's were born with 350/350THM transmissions, both have 6" tail housings... __________________ Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property" "Be American, Buy American"

05-15-2019, 09:57 AM	#5
Already Gone 70+ ( Old Skool Club ) Join Date: Nov 2003 Location: Saskatoon, Saskatchewan ,Canada Posts: 9,161	Re: Trans tailshaft length Thanks for the replys everyone. __________________ 1972 C10 Custom/Deluxe 613 Highlander 406/700R4 1999 White Tahoe LS 4x2 with Z56 Police Package 1992 K1500 GMC Suburban Members I have personally met: MusicMan70 - HeavyD - ChewyChevy67 - StingRay -71SWB4x4 - 67 Burb - DeadheadNM - too much stuff - bc65 - das601 " Circumsatances Do Not Change Responsibility " " The Sky is not the Limit, Your Mind is." Marilyn Monroe .. RIP Charlie Watts 1941 - 2021



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