TH350C Longtail trannie - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ECU PIRATE · 06-14-2010, 07:57 AM

Just got back from Pa. visiting my brother and his new wife. Looking to do a little wheeling and dealing, I was on the hunt for a trannie for the SWB. My sister-in-law's uncle ends up giving me (free) a TH350C in need of a rebuild. Unfortantely, it is a long tail. I know this has been covered before but, I believe I will need a short tail in my truck. Is this true and should I trade this for a short tail?

*Stitch* · 06-14-2010, 09:00 AM

The 350 nonlocking trAnny that came out of my dads truck had 9" long tail on it if that helps any

**old Rusty C10** · 06-14-2010, 09:10 AM

either will work but the driveshaft will have to be correct for the application

Seven9er · 06-14-2010, 10:03 AM

My truck came with a 350 longtail and to swap to a th400 I had to move the crossmember back and get the one piece driveshaft lengthened 3 3/4" for the 400 to work.

blazer2007 · 06-14-2010, 10:33 AM

I have the shorter one in my swb and the long one is usually on a long box with 1 pc dr.shaft from what I,ve seen on my stuff

ECU PIRATE · 06-14-2010, 10:45 AM

Thanks guys. You have been a big help. I need to go to the pick and pull and grab a new trannie crossmember anyway so, I will check and see if they have a short bed up there with a long tail and measure the drive shaft. I have a feeling I may swap this for a short tail

benoit454 · 06-14-2010, 11:49 AM

my dad has an 84 c10 swb right now that has a long tail th350 non lockup, and we had a 76 with a 3 speed on the column(manual and it was the same size as a th350 short tail, so again either would work just need the driveshaft to fit said trans. to use and maybe move crossmember.

ECU PIRATE · 06-14-2010, 01:50 PM

I guess now is the time to decide whether I stay with an automatic or convert it to manual and throw the Saginaw out of my 68' Camaro in there. Too many decisions and not enough money. I know it's probably going to cost more to rebuild that Saginaw than trading this long tail for a short tail and having it rebuilt

HOGDADDY · 06-14-2010, 03:33 PM

Quote:

Originally Posted by ECU PIRATE

I guess now is the time to decide whether I stay with an automatic or convert it to manual and throw the Saginaw out of my 68' Camaro in there. Too many decisions and not enough money. I know it's probably going to cost more to rebuild that Saginaw than trading this long tail for a short tail and having it rebuilt

Imho the Saginaw would not be ideal for a truck. My 86 swb came with a th350c longtail and it made the swap to a 700r4 easy and driveshaft did not have to be changed.

ECU PIRATE · 06-14-2010, 03:59 PM

Quote:

Originally Posted by HOGDADDY

Imho the Saginaw would not be ideal for a truck. My 86 swb came with a th350c longtail and it made the swap to a 700r4 easy and driveshaft did not have to be changed.

Thanks HOGDADDY. I have the drivetrain out of an Olds Omega in the truck right now. The PO torched the cross member to make it fit (Olds 260 & TH200). It sit back about 1" from where it should be. I may just use the long tail to avoid myself some problems

benoit454 · 06-14-2010, 05:18 PM

the sgainaw should be the exact same length overall and same driveshaft as a short tail th350. As for having a truck with a short tail trans. and wanting to put in a long tail you can have the ds cut and re balanced, shouldn't cost more then a hundred bucks, or find one in a junkyard for cheap.

Damien · 06-15-2010, 12:22 AM

Since the th350c needs to be rebuilt, you could have the tail shaft and tail housing swapped during the rebuild.

ECU PIRATE · 06-16-2010, 07:26 AM

Local shop can do the rebuild in 24 hours with a new torque converter for $ 500. They will give me a one year warranty on it. I may just get the drive shaft cut down & balanced for another $ 50 bucks. I guess I need to save up some money but, paying for daycare for my girls is the top priority right now

06-14-2010, 07:57 AM	#1
ECU PIRATE Registered User Join Date: Apr 2009 Location: Centreville, Virginia Posts: 846	TH350C Longtail trannie Just got back from Pa. visiting my brother and his new wife. Looking to do a little wheeling and dealing, I was on the hunt for a trannie for the SWB. My sister-in-law's uncle ends up giving me (free) a TH350C in need of a rebuild. Unfortantely, it is a long tail. I know this has been covered before but, I believe I will need a short tail in my truck. Is this true and should I trade this for a short tail? __________________ The Fleet........ 68' Camaro - 1st car (restored & still have it) 09' VW Tiguan (Wife's Daily Driver) 14' VW Passat SE TSI (my personal) 14' Ford Edge Sport (Daily Work Vehicle) 73' SWB Stepside - 77K org. miles 74' LWB 454/TH400 - drive train transplant for my (Sold) 98' SWB C1500 W/T - shop truck (Sold) 90' GMC Sierra SLE short step - aka " Jezabelle " (Sold)

06-14-2010, 09:00 AM	#2
Stitch Account Suspended Join Date: Jul 2008 Location: Where I come from, it's cornbread and chicken... Posts: 3,122	Re: TH350C Longtail trannie The 350 nonlocking trAnny that came out of my dads truck had 9" long tail on it if that helps any

06-14-2010, 09:10 AM	#3
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,313	Re: TH350C Longtail trannie either will work but the driveshaft will have to be correct for the application __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

06-14-2010, 10:03 AM	#4
Seven9er Registered User Join Date: Jun 2010 Location: Gulfport, MS Posts: 108	Re: TH350C Longtail trannie My truck came with a 350 longtail and to swap to a th400 I had to move the crossmember back and get the one piece driveshaft lengthened 3 3/4" for the 400 to work. __________________ USMC Former SGT 2002-2006 Oshkosh Truck Corporation- FSR, The worlds largest manufacturer of Severe Duty Trucks. The Money Pit. http://67-72chevytrucks.com/vboard/s...d.php?t=406891 2009 2500HD R.I.P. http://67-72chevytrucks.com/vboard/s...12#post4025612

06-14-2010, 10:33 AM	#5
blazer2007 Registered User Join Date: Jan 2007 Location: vernon b.c. Posts: 3,022	Re: TH350C Longtail trannie I have the shorter one in my swb and the long one is usually on a long box with 1 pc dr.shaft from what I,ve seen on my stuff

06-14-2010, 10:45 AM	#6
ECU PIRATE Registered User Join Date: Apr 2009 Location: Centreville, Virginia Posts: 846	Re: TH350C Longtail trannie Thanks guys. You have been a big help. I need to go to the pick and pull and grab a new trannie crossmember anyway so, I will check and see if they have a short bed up there with a long tail and measure the drive shaft. I have a feeling I may swap this for a short tail __________________ The Fleet........ 68' Camaro - 1st car (restored & still have it) 09' VW Tiguan (Wife's Daily Driver) 14' VW Passat SE TSI (my personal) 14' Ford Edge Sport (Daily Work Vehicle) 73' SWB Stepside - 77K org. miles 74' LWB 454/TH400 - drive train transplant for my (Sold) 98' SWB C1500 W/T - shop truck (Sold) 90' GMC Sierra SLE short step - aka " Jezabelle " (Sold)

06-14-2010, 11:49 AM	#7
benoit454 Chris Join Date: Nov 2004 Location: Monaville, WV Posts: 3,737	Re: TH350C Longtail trannie my dad has an 84 c10 swb right now that has a long tail th350 non lockup, and we had a 76 with a 3 speed on the column(manual and it was the same size as a th350 short tail, so again either would work just need the driveshaft to fit said trans. to use and maybe move crossmember. __________________ Chris GIT R DONE!!!!!! Check out all our rides, http://www.cardomain.com/id/benwa454

06-14-2010, 01:50 PM	#8
ECU PIRATE Registered User Join Date: Apr 2009 Location: Centreville, Virginia Posts: 846	Re: TH350C Longtail trannie I guess now is the time to decide whether I stay with an automatic or convert it to manual and throw the Saginaw out of my 68' Camaro in there. Too many decisions and not enough money. I know it's probably going to cost more to rebuild that Saginaw than trading this long tail for a short tail and having it rebuilt __________________ The Fleet........ 68' Camaro - 1st car (restored & still have it) 09' VW Tiguan (Wife's Daily Driver) 14' VW Passat SE TSI (my personal) 14' Ford Edge Sport (Daily Work Vehicle) 73' SWB Stepside - 77K org. miles 74' LWB 454/TH400 - drive train transplant for my (Sold) 98' SWB C1500 W/T - shop truck (Sold) 90' GMC Sierra SLE short step - aka " Jezabelle " (Sold)

06-14-2010, 05:18 PM	#11
benoit454 Chris Join Date: Nov 2004 Location: Monaville, WV Posts: 3,737	Re: TH350C Longtail trannie the sgainaw should be the exact same length overall and same driveshaft as a short tail th350. As for having a truck with a short tail trans. and wanting to put in a long tail you can have the ds cut and re balanced, shouldn't cost more then a hundred bucks, or find one in a junkyard for cheap. __________________ Chris GIT R DONE!!!!!! Check out all our rides, http://www.cardomain.com/id/benwa454

06-15-2010, 12:22 AM	#12
Damien Registered User Join Date: Mar 2007 Location: Farmington, MN Posts: 928	Re: TH350C Longtail trannie Since the th350c needs to be rebuilt, you could have the tail shaft and tail housing swapped during the rebuild. __________________ I can still count my vehicles on two... wait three hands.

06-16-2010, 07:26 AM	#13
ECU PIRATE Registered User Join Date: Apr 2009 Location: Centreville, Virginia Posts: 846	Re: TH350C Longtail trannie Local shop can do the rebuild in 24 hours with a new torque converter for $ 500. They will give me a one year warranty on it. I may just get the drive shaft cut down & balanced for another $ 50 bucks. I guess I need to save up some money but, paying for daycare for my girls is the top priority right now __________________ The Fleet........ 68' Camaro - 1st car (restored & still have it) 09' VW Tiguan (Wife's Daily Driver) 14' VW Passat SE TSI (my personal) 14' Ford Edge Sport (Daily Work Vehicle) 73' SWB Stepside - 77K org. miles 74' LWB 454/TH400 - drive train transplant for my (Sold) 98' SWB C1500 W/T - shop truck (Sold) 90' GMC Sierra SLE short step - aka " Jezabelle " (Sold)

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