Overdrive - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bluek5 · 08-03-2014, 11:17 PM

I spotted this at a Pick-n-Pull in SLC. I was wondering if it would be worth pulling out of the truck. I don't have a use for it myself. The picture is terrible I know. It is in a 69-70 Chevrolet 1 ton.
Paul

BADAZ chevy guy · 08-03-2014, 11:25 PM

I guess it would depend on how much you'd have to pay, and how much you could sell it for later.

btw, I need to head to SLC tomorrow to find a drive shaft. Which pick-a-parts are worth stopping at? The only one I know of is A-1 on 2100 S.

67ChevyRedneck · 08-03-2014, 11:27 PM

What is it? An NV4500?

bluek5 · 08-03-2014, 11:36 PM

Quote:

Originally Posted by BADAZ chevy guy

I guess it would depend on how much you'd have to pay, and how much you could sell it for later.

btw, I need to head to SLC tomorrow to find a drive shaft. Which pick-a-parts are worth stopping at? The only one I know of is A-1 on 2100 S.

The price for an overdrive unit on their web site is $35.99. This one is at the Tear-A-Part on Redwood Road. Good luck on the drive shaft. I have yet to see one that has not been destroyed by the loader.

bluek5 · 08-03-2014, 11:40 PM

Quote:

Originally Posted by 67ChevyRedneck

What is it? An NV4500?

It looks like an overdrive unit between the bell housing and the transmission. It is about six inches long. I believe the transmission is a SM465. I was hoping someone might recognize what brand it is.

**kwmech** · 08-04-2014, 01:18 AM

The only one currently is the Ranger overdrive built by Advance Adapters. May be an older version

BLT gmc · 08-04-2014, 09:02 AM

Paul,
I would pick that in a heartbeat. Wish it was in my back yard, I have plans to add one in the future.
I agree it looks like an Advance Adaptor. Good luck, Bruce

geezer#99 · 08-04-2014, 09:22 AM

Info on that splitter!
http://www.advanceadapters.com/downl...Overdrive0.pdf

67ChevyRedneck · 08-04-2014, 09:43 AM

Quote:

Originally Posted by bluek5

It looks like an overdrive unit between the bell housing and the transmission. It is about six inches long. I believe the transmission is a SM465. I was hoping someone might recognize what brand it is.

Considering they're $1500 new... GO GET IT!

http://www.advanceadapters.com/categ...lete-units/91/

bluek5 · 08-04-2014, 04:38 PM

Thanks for the replies I will go and get it tomorrow,if it is still there.

bluek5 · 08-05-2014, 11:11 PM

More pictures

BLT gmc · 08-06-2014, 09:43 AM

Nice score at the part yard! Did you snag the shifter and the shift boot? Looks like a period correct advance adaptor. Can you confirm it is an overdrive. It looks cast iron the current available ones are aluminium. Good luck with futrue part hunting, Bruce

Avitech · 08-06-2014, 07:42 PM

In my best zombie voice.... IIIIII WWWWAAAANNNNNTTTT TTTTTHHHHAAAATTTT!!!!!! :-)

davepl · 08-06-2014, 08:55 PM

You know what's weird? Just skimming through the photos I started to smell old grease and wrecking yard smells. The brain is funny.

Other than one down at the Oregon border I've never found a decent (or any) yard that carries anything useful around Seattle. If someone knows of a yard in the area that's not a 4 hour drive and has trucks, please let me know!

Livrat · 08-06-2014, 09:43 PM

Quote:

Originally Posted by davepl

You know what's weird? Just skimming through the photos I started to smell old grease and wrecking yard smells. The brain is funny.

Other than one down at the Oregon border I've never found a decent (or any) yard that carries anything useful around Seattle. If someone knows of a yard in the area that's not a 4 hour drive and has trucks, please let me know!

Budget Truck Wrecking in Auburn quite often has a good number of our years of trucks. sometimes they have a bunch and other times just a few.
Also I would check with Binford Wrecking in Auburn.

67ChevyRedneck · 08-06-2014, 10:12 PM

Quote:

Originally Posted by BLT gmc

Nice score at the part yard! Did you snag the shifter and the shift boot? Looks like a period correct advance adaptor. Can you confirm it is an overdrive. It looks cast iron the current available ones are aluminium. Good luck with futrue part hunting, Bruce

That's a good point.... The same company makes an underdrive version as well... It was a 1 ton... Could be an under drive unit.

mjensen · 12-16-2014, 09:36 PM

I know this is an older thread, but I couldn't help but respond

I'm putting in the new version in my build. It is the overdrive setup. I can't wait to get it all done with 3 sticks sticking through the floorboard.

BLT gmc · 12-17-2014, 10:53 AM

MIke,
Paul was kind enough to pull,package and send this to me. Alright, we did agree on a fair price. I have not installed it yet. I had a fatal cam lobe failure despite break-in and good oil. I can not prove but I believe it was improperly hardened by comp cams. I have a Rockwell T-221 case. So the case shifter is on the drivers side of the tranny. I have not quite figured out the right solution. Definately going to have to move the case shifter forward. What set-up do you have? I assume you will have to move the cross member and shorten/lengthen the driveshafts. Bruce

mjensen · 12-17-2014, 11:44 AM

Bruce,
I also have the T-221 tcase in mine. My entire unit adds 7-1/2" to the length, so I ended up moving my engine forward 2" and the rear cross member back 5-1/2". For the tcase shifter, I built a plate for the two mounting holes on the passenger side of the transmission, and I'm in the process of building a linkage to connect that to the existing lever on the tcase. Overall, this was a fairly easy installation, except for the troubles with relocating my z bar for the mechanical clutch assembly that I still plan on running. I have some pics of my setup in my build thread that may give you some ideas.

08-03-2014, 11:17 PM	#1
bluek5 Registered User Join Date: Apr 2012 Location: Lehi,Utah Posts: 1,330	Overdrive I spotted this at a Pick-n-Pull in SLC. I was wondering if it would be worth pulling out of the truck. I don't have a use for it myself. The picture is terrible I know. It is in a 69-70 Chevrolet 1 ton. Paul Attached Images

08-03-2014, 11:25 PM	#2
BADAZ chevy guy Registered User Join Date: Mar 2014 Location: Clearfield Utah Posts: 638	Re: Overdrive I guess it would depend on how much you'd have to pay, and how much you could sell it for later. btw, I need to head to SLC tomorrow to find a drive shaft. Which pick-a-parts are worth stopping at? The only one I know of is A-1 on 2100 S. __________________ My build thread. 1977 C10 short box. >>>> http://67-72chevytrucks.com/vboard/s...d.php?t=624182 700R4 build thread. >>> http://67-72chevytrucks.com/vboard/s...36#post6740236

08-03-2014, 11:27 PM	#3
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Overdrive What is it? An NV4500? __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

08-04-2014, 01:18 AM	#6
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,628	Re: Overdrive The only one currently is the Ranger overdrive built by Advance Adapters. May be an older version

08-04-2014, 09:02 AM	#7
BLT gmc Registered User Join Date: Feb 2014 Location: West Iowa Posts: 1,106	Re: Overdrive Paul, I would pick that in a heartbeat. Wish it was in my back yard, I have plans to add one in the future. I agree it looks like an Advance Adaptor. Good luck, Bruce

08-04-2014, 09:22 AM	#8
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,731	Re: Overdrive Info on that splitter! http://www.advanceadapters.com/downl...Overdrive0.pdf

08-04-2014, 04:38 PM	#10
bluek5 Registered User Join Date: Apr 2012 Location: Lehi,Utah Posts: 1,330	Re: Overdrive Thanks for the replies I will go and get it tomorrow,if it is still there.

08-05-2014, 11:11 PM	#11
bluek5 Registered User Join Date: Apr 2012 Location: Lehi,Utah Posts: 1,330	Re: Overdrive More pictures Attached Images

08-06-2014, 09:43 AM	#12
BLT gmc Registered User Join Date: Feb 2014 Location: West Iowa Posts: 1,106	Re: Overdrive Nice score at the part yard! Did you snag the shifter and the shift boot? Looks like a period correct advance adaptor. Can you confirm it is an overdrive. It looks cast iron the current available ones are aluminium. Good luck with futrue part hunting, Bruce

08-06-2014, 07:42 PM	#13
Avitech Registered User Join Date: Mar 2013 Location: Troy, NH Posts: 44	Re: Overdrive In my best zombie voice.... IIIIII WWWWAAAANNNNNTTTT TTTTTHHHHAAAATTTT!!!!!! :-) __________________ 1990 Suburban Silverado 350, SM465 and 35" tires

08-06-2014, 08:55 PM	#14
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,332	Re: Overdrive You know what's weird? Just skimming through the photos I started to smell old grease and wrecking yard smells. The brain is funny. Other than one down at the Oregon border I've never found a decent (or any) yard that carries anything useful around Seattle. If someone knows of a yard in the area that's not a 4 hour drive and has trucks, please let me know! __________________ 1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible

12-16-2014, 09:36 PM	#17
mjensen Registered User Join Date: Jun 2006 Location: Utah Posts: 1,562	Re: Overdrive I know this is an older thread, but I couldn't help but respond I'm putting in the new version in my build. It is the overdrive setup. I can't wait to get it all done with 3 sticks sticking through the floorboard. __________________ Mike '69 GMC 3/4 ton 4x4 Build Thread

12-17-2014, 10:53 AM	#18
BLT gmc Registered User Join Date: Feb 2014 Location: West Iowa Posts: 1,106	Re: Overdrive MIke, Paul was kind enough to pull,package and send this to me. Alright, we did agree on a fair price. I have not installed it yet. I had a fatal cam lobe failure despite break-in and good oil. I can not prove but I believe it was improperly hardened by comp cams. I have a Rockwell T-221 case. So the case shifter is on the drivers side of the tranny. I have not quite figured out the right solution. Definately going to have to move the case shifter forward. What set-up do you have? I assume you will have to move the cross member and shorten/lengthen the driveshafts. Bruce

12-17-2014, 11:44 AM	#19
mjensen Registered User Join Date: Jun 2006 Location: Utah Posts: 1,562	Re: Overdrive Bruce, I also have the T-221 tcase in mine. My entire unit adds 7-1/2" to the length, so I ended up moving my engine forward 2" and the rear cross member back 5-1/2". For the tcase shifter, I built a plate for the two mounting holes on the passenger side of the transmission, and I'm in the process of building a linkage to connect that to the existing lever on the tcase. Overall, this was a fairly easy installation, except for the troubles with relocating my z bar for the mechanical clutch assembly that I still plan on running. I have some pics of my setup in my build thread that may give you some ideas. __________________ Mike '69 GMC 3/4 ton 4x4 Build Thread



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