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#1 |
Registered User
Join Date: Aug 2001
Location: Santa Barbara, CA
Posts: 14
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3 speed manual......w/ overdrive?
I have a 72 C10 with a 4/11 rear end and a 3 speed manual. Needless to say I'm screamin' on the freeway. I have heard that there exist(ed) an overdrive system that attached to the rear of the existing transmission after shortening the driveshaft. I can't find one anywhere though. Maybe I'm calling it the wrong name. Anybody got knowledge?
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#2 |
Registered User
Join Date: May 2002
Location: S.E. Fla
Posts: 185
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it called a gear vendors overdrive. they can cost up to 3500 for a unit check ebay. the web for them is gearvendors.com hope this helps
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#3 |
Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,720
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There was an optional electric OD on GM cars and trucks in the 50's and 60's. Ford had it as well. Made by Borg Warner. You can probably come up with one if you scrounge some old timey style yards. My buddies 55 Ford we redid had the OD in it as well as his brothers 65 BelAir. Both were I6 powered, but I think it was available behind the 8. Know it was in the Ford. They aren't real stout like the Gear Vendors, but they did work pretty well.
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44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
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#4 |
"Ochre Ogre"
Join Date: Apr 2000
Location: Springfield, MN
Posts: 3,558
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I have one in a 63 ford Galaxie parts car. 3sp manual +OD and it is behind a 289 V8. I have seen several 67 C10's advertised with 3spd OD's.
I have also have an article about a mopar 3spd OD that is a relatively simple bolt in if you can find the tranny.
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Bowtie Truck Stop Inc. Mid-West GM Truck Restoration Parts Supplier Your Key Parts, Auto Metal Direct, Dynacorn, and Goodmark dealer. like us @ www.facebook.com/BowtieTruckStop 1971 C-10 Suburban (Ochre) 1971 K-10 Suburban (Ochre) 1972 C-10 Suburban (Ochre) 1972 K-20 Suburban (Yellow- that just aint right!) Springfield, Minnesota 56087 |
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#5 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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da-burb is correct, you could get tehm stock in these trucks...but not with a big block.
I hear they are not only week, but way obsolete and swap meet part only. Been told they are not worth your time...but this is all 2nd and 3rd hand info. |
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#6 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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There were 2 different versions of the 3 spd OD for the chev. The muncie (318) was a weak box. The saginaw(326) was not too bad a box, & would take a little guff. Back in the mid 70s there was an article in Hotrod mag, about mating the OD unit to a saginaw 4 spd. The parts were scarce even back then, so i didnt get to try one
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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