Putting a Gear Vendor overdrive on my 68 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

c10addict · 09-09-2010, 09:05 PM

Been a while since I have posted anything... Shops been busy and so have I!! Since we are a Gear Vendor dealer I am putting one on my 68.. It will be at Hot Rod drag week on display... Currently the truck has a M21 in it but Im going to change it to a M20 since I will have to ability to split every gear.. Here are a few pics.. (Gotta love air ride when you need to get under the truck! No jack required!

) Pretty easy install, remove your tailshaft and install the adapter, hang the gear vendor off the back of that and shorten the driveshaft... ... Hook up a few wires and waa laa!! Pics to follow soon...

Irishpilot · 09-09-2010, 09:17 PM

After driving across the country with a TH350, I can appreciate your mod.
Posted via Mobile Device

Zoomin · 09-09-2010, 09:49 PM

Ahem... you mentioned something about pics?

Oh, and how much do these puppies run, and how does the final drive compare to a 700R? Supposedly stronger too, I believe.

*RUSHNBOBO* · 09-09-2010, 11:05 PM

Quote:

Originally Posted by c10addict

Been a while since I have posted anything... Shops been busy and so have I!! Since we are a Gear Vendor dealer I am putting one on my 68.. It will be at Hot Rod drag week on display... Currently the truck has a M21 in it but Im going to change it to a M20 since I will have to ability to split every gear.. Here are a few pics.. (Gotta love air ride when you need to get under the truck! No jack required!

) Pretty easy install, remove your tailshaft and install the adapter, hang the gear vendor off the back of that and shorten the driveshaft... ... Hook up a few wires and waa laa!! Pics to follow soon...

Gear Vendors behind turbo transmissions rule, they can handle huge horsepower and are often used in off road racing with 850+ horsepower. Plus u have full power over and under shifting capabilities. I'm saving to put one in the dually asap...............................

**lolife99** · 09-09-2010, 11:08 PM

You sir,... have a sweet looking dually^^^.

**Tom Vogel** · 09-10-2010, 12:41 AM

[QUOTE= Currently the truck has a M21 in it but Im going to change it to a M20 since I will have to ability to split every gear.. QUOTE]

Youre putting it on a Muncie? So the Vendors are self contained oiling??

cdowns · 09-10-2010, 07:58 AM

i dont see pics

c10addict · 09-10-2010, 08:57 AM

[quote=Tom Vogel;4182523]

Quote:

Originally Posted by Currently the truck has a M21 in it but Im going to change it to a M20 since I will have to ability to split every gear.. QUOTE

Youre putting it on a Muncie? So the Vendors are self contained oiling??

Yes they are self contained..

c10addict · 09-10-2010, 09:20 AM

Quote:

Originally Posted by Zoomin

Ahem... you mentioned something about pics?

Oh, and how much do these puppies run, and how does the final drive compare to a 700R? Supposedly stronger too, I believe.

Depending on what trans you have they are roughly $2600.00... The overdrive ratio is .78 so roughly 22 percent.. What that means is around a 500 RPM drop at 60.. They will handle 1800 hp and gobs of torque... Advantage to a 700r4 or a newer 5 or 6 speed manual is strength.. 700R4s are not know to hold up to a lot of abuse.. You can build a bad a$$ turbo 350 or 400 and put a Gear vendor behind it and it would be the best of both worlds.. Same with a manual... You can rip gears a lot faster with a good old four speed and have your over drive. Plus I think they are a little stronger.. Truly a awesome set up..

PanelDeland · 09-10-2010, 04:49 PM

From what I understand, a lot of motorhomes are using GV OD.I think that would convince me of the torque handling ability.I've also never heard of a broke one.Let us know how it works out.

cleszkie · 09-10-2010, 05:29 PM

I installed one I found in a junkyard behind the NP205 on my 72 Blazer. By far the best mod I have ever made.

**SactoJim** · 09-10-2010, 05:43 PM

That's almost one of those "finds of a lifetime!"

Quote:

Originally Posted by cleszkie

I installed one I found in a junkyard behind the NP205 on my 72 Blazer. By far the best mod I have ever made.

Painter D · 09-10-2010, 06:10 PM

Quote:

Originally Posted by lolife99

You sir,... have a sweet looking dually^^^.

Agreed

**driller35** · 09-10-2010, 08:49 PM

Cleszkie, how much of a lift do you have in your blazer and how much extra length did it add,thinking of sticking one behind mine with the SM465

Shaky · 09-11-2010, 02:32 PM

Tagged for info as I want to do this to my SM420:

c10addict · 09-13-2010, 01:53 PM

Got it all put in on Friday... Man is it awesome!! Its cool to roll out in first gear, split in to first over and it barks the tires hard then rip second and bark the tires again! Here are some pics of the install and it in the parking lot at the shop with a fellow board members truck and a few other cars we built..

c10addict · 09-13-2010, 01:55 PM

few more pics...

Shaky · 09-13-2010, 03:18 PM

Looks good.

Any pics with the crossmember in place? I'm trying to get a feel for how much is cantilevered.

c10addict · 09-13-2010, 03:21 PM

Quote:

Originally Posted by Shaky

Looks good.

Any pics with the crossmember in place? I'm trying to get a feel for how much is cantilevered.

Actually I have to build a Crossmember when the truck b=gets back from drag week.... It is only hanging by the bell housing.. Ran out of time!!

Lemield · 09-13-2010, 03:34 PM

I got a GV in my 1970 CST.....I LOVE it....easy to install, easy to use.

big_al_71 · 09-13-2010, 04:09 PM

We just put one of these units on my buddies 72 camaro super charged with a big block.....I wish I would had known that you were a vendor for them. This is on my list of things to add to my bucket..

pockets · 09-13-2010, 04:39 PM

from what I've read almost all the cars at drag week use the GV unit. that is quite a testament to it's strength.

haysonj · 09-13-2010, 04:59 PM

Quote:

Originally Posted by Shaky

Looks good.

Any pics with the crossmember in place? I'm trying to get a feel for how much is cantilevered.

Heres mine with a 208 transfer case behind a T400 it hangs 36 inches behind the cross member. I had to go with a CV joint on the drive shaft because of the angle and the short drive shaft.

Shaky · 09-13-2010, 05:13 PM

Quote:

Originally Posted by haysonj

Heres mine with a 208 transfer case behind a T400 it hangs 36 inches behind the cross member. I had to go with a CV joint on the drive shaft because of the angle and the short drive shaft.

Thanks. I guess I don't need to worry with that hanging off the cast iron SM420 which hangs off the cast iron bell housing.

PanelDeland · 09-13-2010, 05:31 PM

Looks like a clean install.I would do a crossmember just to give it a bit more strength and stability

and That Buick wagon is sick!!

09-09-2010, 09:05 PM	#1
c10addict Registered User Join Date: Aug 2007 Location: pittsburgh pa Posts: 1,970	Putting a Gear Vendor overdrive on my 68 Been a while since I have posted anything... Shops been busy and so have I!! Since we are a Gear Vendor dealer I am putting one on my 68.. It will be at Hot Rod drag week on display... Currently the truck has a M21 in it but Im going to change it to a M20 since I will have to ability to split every gear.. Here are a few pics.. (Gotta love air ride when you need to get under the truck! No jack required!) Pretty easy install, remove your tailshaft and install the adapter, hang the gear vendor off the back of that and shorten the driveshaft... ... Hook up a few wires and waa laa!! Pics to follow soon... __________________ 68 C10 Shorty TPI,Bagged, and all the good stuff. Classic trucks feature June 06, On the cover of Jegs Christmas Catalog 08 67 C10 Shorty Shop truck project Bagged and Z'd under destruction and getting nowhere fast. 64 C10 Shop Truck/Daily driver, Bagged, Dropmember, SOLD!!!! Gone but not forgotten.. 54 GMC under the knife getting a S10 chassis swap and bagged. See my build thread... 07 GMC Sierra 5/7 drop, 22's and 24's Air ride on my mind.. http://67-72chevytrucks.com/vboard/s...d.php?t=339340 See pics of my trucks in my profile

09-09-2010, 09:17 PM	#2
Irishpilot Registered User Join Date: Jul 2006 Location: Kunsan AB, South Korea Posts: 187	Re: Putting a Gear Vendor overdrive on my 68 After driving across the country with a TH350, I can appreciate your mod. Posted via Mobile Device __________________ 1971 C-10, 406ci, restoration begun! 406ci sb; zero decked, bored .030, edelbrock aluminum e-tec heads, edelbrock performer RPM intake, comp 268 cam, comp 1.6 pro-magnum roller rockers, MSD street fire HEI, MSD 8.5mm wires, Holley Street demon 770, Hedman LT headers. 10.6:1 compression, Air Ride Tech bags on all 4-corners.

09-09-2010, 09:49 PM	#3
Zoomin Man of Mini-Talents Join Date: Sep 2009 Location: Oklahoma City, OK Posts: 4,295	Re: Putting a Gear Vendor overdrive on my 68 Ahem... you mentioned something about pics? Oh, and how much do these puppies run, and how does the final drive compare to a 700R? Supposedly stronger too, I believe. __________________ Steve Project - Ruth 66 Skylark Project - Lola 60 Biscayne Project - Iron Ox 54 GMC 100 Project - Darth 69 Camaro

09-09-2010, 11:08 PM	#5
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: Putting a Gear Vendor overdrive on my 68 You sir,... have a sweet looking dually^^^. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

09-10-2010, 12:41 AM	#6
Tom Vogel 2WD Jimmy Join Date: Mar 2005 Location: Davis County, Utah Posts: 2,565	Re: Putting a Gear Vendor overdrive on my 68 [QUOTE= Currently the truck has a M21 in it but Im going to change it to a M20 since I will have to ability to split every gear.. QUOTE] Youre putting it on a Muncie? So the Vendors are self contained oiling??

09-10-2010, 07:58 AM	#7
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Putting a Gear Vendor overdrive on my 68 i dont see pics __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

09-10-2010, 04:49 PM	#10
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,993	Re: Putting a Gear Vendor overdrive on my 68 From what I understand, a lot of motorhomes are using GV OD.I think that would convince me of the torque handling ability.I've also never heard of a broke one.Let us know how it works out. __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"

09-10-2010, 05:29 PM	#11
cleszkie Registered User Join Date: Feb 2003 Location: Santa Ana, CA Posts: 2,191	Re: Putting a Gear Vendor overdrive on my 68 I installed one I found in a junkyard behind the NP205 on my 72 Blazer. By far the best mod I have ever made. Attached Images

09-10-2010, 08:49 PM	#14
driller35 Senior Member Join Date: Aug 2009 Location: Calgary,AB Posts: 323	Re: Putting a Gear Vendor overdrive on my 68 Cleszkie, how much of a lift do you have in your blazer and how much extra length did it add,thinking of sticking one behind mine with the SM465 __________________ 72 Chev Cheyenne Super SB 4x4 350,4spd,buckets, tilt,tach,am-fm,extreme tow hooks,Canadian Model Production 1 of 52 SOLD 70 Chev CST, 350 auto, PS, PB, AC, tach

09-11-2010, 02:32 PM	#15
Shaky Six in a row makes it go... Join Date: Mar 2009 Location: Vacationland: Maine Posts: 1,346	Re: Putting a Gear Vendor overdrive on my 68 Tagged for info as I want to do this to my SM420: Attached Images __________________ 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

09-13-2010, 01:53 PM	#16
c10addict Registered User Join Date: Aug 2007 Location: pittsburgh pa Posts: 1,970	Re: Putting a Gear Vendor overdrive on my 68 Got it all put in on Friday... Man is it awesome!! Its cool to roll out in first gear, split in to first over and it barks the tires hard then rip second and bark the tires again! Here are some pics of the install and it in the parking lot at the shop with a fellow board members truck and a few other cars we built.. Attached Images __________________ 68 C10 Shorty TPI,Bagged, and all the good stuff. Classic trucks feature June 06, On the cover of Jegs Christmas Catalog 08 67 C10 Shorty Shop truck project Bagged and Z'd under destruction and getting nowhere fast. 64 C10 Shop Truck/Daily driver, Bagged, Dropmember, SOLD!!!! Gone but not forgotten.. 54 GMC under the knife getting a S10 chassis swap and bagged. See my build thread... 07 GMC Sierra 5/7 drop, 22's and 24's Air ride on my mind.. http://67-72chevytrucks.com/vboard/s...d.php?t=339340 See pics of my trucks in my profile

09-13-2010, 01:55 PM	#17
c10addict Registered User Join Date: Aug 2007 Location: pittsburgh pa Posts: 1,970	Re: Putting a Gear Vendor overdrive on my 68 few more pics... Attached Images __________________ 68 C10 Shorty TPI,Bagged, and all the good stuff. Classic trucks feature June 06, On the cover of Jegs Christmas Catalog 08 67 C10 Shorty Shop truck project Bagged and Z'd under destruction and getting nowhere fast. 64 C10 Shop Truck/Daily driver, Bagged, Dropmember, SOLD!!!! Gone but not forgotten.. 54 GMC under the knife getting a S10 chassis swap and bagged. See my build thread... 07 GMC Sierra 5/7 drop, 22's and 24's Air ride on my mind.. http://67-72chevytrucks.com/vboard/s...d.php?t=339340 See pics of my trucks in my profile Last edited by c10addict; 09-13-2010 at 01:57 PM.

09-13-2010, 03:18 PM	#18
Shaky Six in a row makes it go... Join Date: Mar 2009 Location: Vacationland: Maine Posts: 1,346	Re: Putting a Gear Vendor overdrive on my 68 Looks good. Any pics with the crossmember in place? I'm trying to get a feel for how much is cantilevered. __________________ 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

09-13-2010, 03:34 PM	#20
Lemield Registered User Join Date: Dec 2004 Location: Arvada Colorado Posts: 1,321	Re: Putting a Gear Vendor overdrive on my 68 I got a GV in my 1970 CST.....I LOVE it....easy to install, easy to use. __________________ Larry 1949 Willys CJ2A, Kubota Turbo Diesel engine, Warn Overdrive, 11 inch brakes, 12volt, Warn M8000 Winch "Little Green" 1970 Rustoleum Roller Red C20 Custom Camper 454 TH400 "Big Red" 1971 K20 6.2 Turbo Diesel 4x4 4spd Ranger Overdrive "Pumpkin Wagon" 2005 VW Beetle Diesel 44+ MPG "Silver Bullet"

09-13-2010, 04:09 PM	#21
big_al_71 Registered User Join Date: Jun 2008 Location: South Florida Posts: 11,375	Re: Putting a Gear Vendor overdrive on my 68 We just put one of these units on my buddies 72 camaro super charged with a big block.....I wish I would had known that you were a vendor for them. This is on my list of things to add to my bucket.. __________________ Get your facts first, and then you can distort them as much as you please!!!!!. Sylvester's build thread >>>http://67-72chevytrucks.com/vboard/s...ht=big+rebuild



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09-13-2010, 04:39 PM	#22
pockets Registered User Join Date: Sep 2010 Location: Broken Arrow, OK Posts: 428	Re: Putting a Gear Vendor overdrive on my 68 from what I've read almost all the cars at drag week use the GV unit. that is quite a testament to it's strength.

09-13-2010, 05:31 PM	#25
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,993	Re: Putting a Gear Vendor overdrive on my 68 Looks like a clean install.I would do a crossmember just to give it a bit more strength and stability and That Buick wagon is sick!! __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"

Register or Log In To remove these advertisements.