Need Gear Vendors OD Dimensions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

SCOTI · 02-08-2016, 01:35 PM

I know there were a couple of the Squarebody group that had GV OD units in their trucks. I looked on their website but don't see the dimensions to get an idea if one of these units will fit under my truck w/o a domino effect. They list the tailhousing assembly circled in yellow @ 12.25" (TH400/mech speedo app) but don't list the dimensions of the other section circled in red.

This could possible interfere w/my exhaust crossover and/or exhaust flanges. Does any have the length for the adapter portion in red?

monte0185 · 02-08-2016, 03:14 PM

Wish I still had that dually Id gladly measure it for ya. Sold it and bought a 91 crew with the 4l80.

KQQL IT · 02-08-2016, 04:38 PM

18-3/8

SCOTI · 02-08-2016, 04:48 PM

Quote:

Originally Posted by KQQL IT

18-3/8

Wow..... That adds significanly to the overall length.

KQQL IT · 02-08-2016, 05:04 PM

A friend has a new one and about to install it, that was from the adapter to the rear seal.

68Timber · 02-08-2016, 05:10 PM

So that's those two pieces combined, and it replaces the 4" tailshaft?

SCOTI · 02-08-2016, 05:54 PM

Quote:

Originally Posted by KQQL IT

A friend has a new one and about to install it, that was from the adapter to the rear seal.

Would it be possible to snag a pic of the assembled unit if you're able?

72MARIO · 02-12-2016, 10:39 AM

I put one in my suburban. I have had a lot of problems specifically with vibration that I cant get fully resolved I believe it inside the unit. The unit is week in reverse something I didn't know until after I installed it.

If I was to do it again I would use a 4l80E. Just put it in drive and go. We put a 4l80 in my dads 1973 2wd 2500 behind a big block using the TCI controller. It works amazing

tucsonjwt · 02-13-2016, 02:10 PM

I had vibration with the GV unit in mine until I took the truck to a shop specializing in drive lines. The PO never had the drive shaft rebalanced, and the driveshaft was intermittently making contact with a support brace that was welded in place to support the dump conversion hoist I had installed.

72MARIO · 02-13-2016, 08:21 PM

I have had 2 shafts built trying to correct this problem. Along with a complete rear end rebuild including checking the run out of the new moser axles.. I checked the pinion angle myself then paid a very high end shop to verify my angles were correct. They sent out the first shaft to there preferred drive line shop and had it re balanced still vibrated. I then I had a new shaft built still vibrated above 70 mph . When I was on a trip in the summer I had the 2nd shaft re balanced in that got it a little different but continued to have vibration problem.

I will make one more attempt at correcting this by taking the original shaft 2 piece shaft and having it cut down to the 55" total length. If that does not work I will toss it in the trash and stick a 4L80E in its place.

KQQL IT · 02-15-2016, 03:04 AM

Scoti, this is the ex cab dually install pic

SCOTI · 02-15-2016, 03:37 AM

Thanks. I'll print that pic. That along w/the previous mentioned directions in hand, I'll crawl back under w/the tape measure again for another look.

KQQL IT · 02-16-2016, 02:04 AM

With the driveshaft in. Save these because I lifted them and hosted them with Facebook

02-08-2016, 01:35 PM	#1
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 21,942	Need Gear Vendors OD Dimensions I know there were a couple of the Squarebody group that had GV OD units in their trucks. I looked on their website but don't see the dimensions to get an idea if one of these units will fit under my truck w/o a domino effect. They list the tailhousing assembly circled in yellow @ 12.25" (TH400/mech speedo app) but don't list the dimensions of the other section circled in red. This could possible interfere w/my exhaust crossover and/or exhaust flanges. Does any have the length for the adapter portion in red? Attached Images __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

02-08-2016, 03:14 PM	#2
monte0185 Registered User Join Date: Oct 2008 Location: Brighton, TN Posts: 1,267	Re: Need Gear Vendors OD Dimensions Wish I still had that dually Id gladly measure it for ya. Sold it and bought a 91 crew with the 4l80. __________________ A computer once beat me at chess, but it was no match for me at kick boxing. Duct tape is like the force. It has a light side, a dark side, and it holds the world together.

02-08-2016, 04:38 PM	#3
KQQL IT At the body shop. Join Date: Aug 2009 Location: Land of fruits and nuts. Posts: 5,200	Re: Need Gear Vendors OD Dimensions 18-3/8 __________________ " That didnt make it any newer " " Dont antique the equipment "

02-08-2016, 05:04 PM	#5
KQQL IT At the body shop. Join Date: Aug 2009 Location: Land of fruits and nuts. Posts: 5,200	Re: Need Gear Vendors OD Dimensions A friend has a new one and about to install it, that was from the adapter to the rear seal. __________________ " That didnt make it any newer " " Dont antique the equipment "

02-08-2016, 05:10 PM	#6
68Timber I know the pieces fit Join Date: Nov 2007 Location: MONTGOMERY, AL Posts: 5,523	Re: Need Gear Vendors OD Dimensions So that's those two pieces combined, and it replaces the 4" tailshaft? __________________ John 79 2wd Blazer (Bruiser) 85 M1009 Blazer (Sarge) build 74 Honda Z50 build

02-12-2016, 10:39 AM	#8
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,052	Re: Need Gear Vendors OD Dimensions I put one in my suburban. I have had a lot of problems specifically with vibration that I cant get fully resolved I believe it inside the unit. The unit is week in reverse something I didn't know until after I installed it. If I was to do it again I would use a 4l80E. Just put it in drive and go. We put a 4l80 in my dads 1973 2wd 2500 behind a big block using the TCI controller. It works amazing __________________ 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

02-13-2016, 02:10 PM	#9
tucsonjwt Registered User Join Date: Jul 2007 Location: Tucson, AZ Posts: 3,188	Re: Need Gear Vendors OD Dimensions I had vibration with the GV unit in mine until I took the truck to a shop specializing in drive lines. The PO never had the drive shaft rebalanced, and the driveshaft was intermittently making contact with a support brace that was welded in place to support the dump conversion hoist I had installed.

02-13-2016, 08:21 PM	#10
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,052	Re: Need Gear Vendors OD Dimensions I have had 2 shafts built trying to correct this problem. Along with a complete rear end rebuild including checking the run out of the new moser axles.. I checked the pinion angle myself then paid a very high end shop to verify my angles were correct. They sent out the first shaft to there preferred drive line shop and had it re balanced still vibrated. I then I had a new shaft built still vibrated above 70 mph . When I was on a trip in the summer I had the 2nd shaft re balanced in that got it a little different but continued to have vibration problem. I will make one more attempt at correcting this by taking the original shaft 2 piece shaft and having it cut down to the 55" total length. If that does not work I will toss it in the trash and stick a 4L80E in its place. __________________ 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

02-15-2016, 03:04 AM	#11
KQQL IT At the body shop. Join Date: Aug 2009 Location: Land of fruits and nuts. Posts: 5,200	Re: Need Gear Vendors OD Dimensions Scoti, this is the ex cab dually install pic __________________ " That didnt make it any newer " " Dont antique the equipment "

02-15-2016, 03:37 AM	#12
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 21,942	Re: Need Gear Vendors OD Dimensions Thanks. I'll print that pic. That along w/the previous mentioned directions in hand, I'll crawl back under w/the tape measure again for another look. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

02-16-2016, 02:04 AM	#13
KQQL IT At the body shop. Join Date: Aug 2009 Location: Land of fruits and nuts. Posts: 5,200	Re: Need Gear Vendors OD Dimensions With the driveshaft in. Save these because I lifted them and hosted them with Facebook __________________ " That didnt make it any newer " " Dont antique the equipment "

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