AL Rare optional 3 speed overdrive trans - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**GMCNUT** · 10-06-2020, 11:06 AM

Found a lady selling off her deceased husbands stash of 1950's and 1960's pickup parts here in Alabama and I am going to drive over and acquire all of it in the morning. Among the interesting parts I spotted was a seldom seen original 3 speed overdrive transmission and bellhousing. the two were separated so I'll have to wait and see if they truly go together but assume so. Anyway, until I load it all up I won't know what all I am really buying, but I wanted to tell all of you about the 3 speed O.D. because that is a very highly sought after changeover trans with many enthusiasts in the 60-66 crowd.

Text me at 256 486 1988 with 60-66 parts wanted and I will check the stash and see if its among these items I am getting tomorrow or something maybe I already have

**Riverstory** · 10-21-2020, 08:24 PM

Do you by chance have this bracket? It is the bracket that is held on by the solenoid bolt that holds the overdrive cable sheath. Thanks

**Subdude59** · 10-21-2020, 09:22 PM

What’s the ratio of the top gear? Will it fit a 66 K14 Burb?

**The Rocknrod** · 10-22-2020, 01:15 PM

You need to post the price.

**LockDoc** · 10-23-2020, 12:47 AM

-
You also need to check and see if it is a Tri-Five 3 speed OD transmission. They are different. They will bolt up to the later bell housings but if I remember correctly first gear is not synchronized in them. Also, a different bolt pattern on the side cover. Someone correct me if I'm wrong.....

LockDoc

**cwcarpenter98** · 10-23-2020, 10:32 AM

Quote:

Originally Posted by LockDoc

-
You also need to check and see if it is a Tri-Five 3 speed OD transmission. They are different. They will bolt up to the later bell housings but if I remember correctly first gear is not synchronized in them. Also, a different bolt pattern on the side cover. Someone correct me if I'm wrong.....

LockDoc

All of the 4 bolt side cover overdrive transmissions are non-syncro 1st. The 7 bolt side cover overdrive transmissions are fully-syncro'd

**GMCNUT** · 10-23-2020, 11:32 AM

Got the trans and it is a non-synchonized 1st gear type trans with a 56 or 57 date code so will work on 60-66 but not date coded to 60-66. $250 for the trans itself - no other OD related parts were present - inquire if interested

**LockDoc** · 10-23-2020, 01:13 PM

Quote:

Originally Posted by cwcarpenter98

All of the 4 bolt side cover overdrive transmissions are non-syncro 1st. The 7 bolt side cover overdrive transmissions are fully-syncro'd

Thanks.

LockDoc

10-06-2020, 11:06 AM	#1
GMCNUT Senior Member Join Date: Jun 2007 Location: Arab Alabama Posts: 1,809	Rare optional 3 speed overdrive trans Found a lady selling off her deceased husbands stash of 1950's and 1960's pickup parts here in Alabama and I am going to drive over and acquire all of it in the morning. Among the interesting parts I spotted was a seldom seen original 3 speed overdrive transmission and bellhousing. the two were separated so I'll have to wait and see if they truly go together but assume so. Anyway, until I load it all up I won't know what all I am really buying, but I wanted to tell all of you about the 3 speed O.D. because that is a very highly sought after changeover trans with many enthusiasts in the 60-66 crowd. Text me at 256 486 1988 with 60-66 parts wanted and I will check the stash and see if its among these items I am getting tomorrow or something maybe I already have __________________ My Projects and Toys - All 100% Stock 1972 CST "Highlander" Blazer - 350 auto, PS, PB, A/C, Tilt, Tach, AM/FM & Positraction 1966 Chevy SWB Fleetside BBW Custom Cab, #'s matching 327 V8 & Powerglide, factory deluxe heat, PS, PB, Tinted Glass, sway bar 1961 Chevy SWB Fleetside BBW Custom Cab #'s matching 283 V8 & Powerglide w/ uber-rare Cool-Pack A/C, factory PB, deluxe heat, Clock 1961 GMC K1000 4x4 SWB w/ BBW, Custom Cab and numbers matching 305D V6 engine & 4 spd 1960 GMC SWB Fleetside BBW Custom Cab #'s matching 305A V6 & Hydramatic, factory PB, Clock, Tach, Compass, Hood Jet 1959 Chevy SWB Fleetside BBW Custom Cab w/ rare stainless bed trim, #'s matching 283 V8 & Hydramatic, Deluxe Heat, radio, spotlight 1958 Chevy Cameo #'s matching 283 V8 & Hydramatic, radio, window washers, Factory PB 1958 GMC BBW SWB Fleetside Custom Cab, #'s matching 336 V8 Hydramatic, Factory PS, PB, Clock, RSD, Deluxe Heat & Hood Jet 1957 GMC Suburban Pickup (GMC's Cameo) #'s matching 347 V8 Hydramatic, uber-rare vacuum ashtray, Factory PS, PB, Clock, RSD, Hood Jet 1956 Chevy 3800 1 ton w/ rare 9 ft stepside bed, factory 265 V8 w/ Hydramatic, factory PB, Custom Cab, deluxe heat, spotlight and hood jet.

10-21-2020, 08:24 PM	#2
Riverstory Registered User Join Date: Aug 2020 Location: Lake Havasu City AZ Posts: 142	Re: Rare optional 3 speed overdrive trans Do you by chance have this bracket? It is the bracket that is held on by the solenoid bolt that holds the overdrive cable sheath. Thanks Attached Images

10-21-2020, 09:22 PM	#3
Subdude59 Active Member Join Date: Dec 2014 Location: Columbus, IN Posts: 196	Re: Rare optional 3 speed overdrive trans What’s the ratio of the top gear? Will it fit a 66 K14 Burb?

10-22-2020, 01:15 PM	#4
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: Rare optional 3 speed overdrive trans You need to post the price. __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

10-23-2020, 12:47 AM	#5
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,818	Re: Rare optional 3 speed overdrive trans - You also need to check and see if it is a Tri-Five 3 speed OD transmission. They are different. They will bolt up to the later bell housings but if I remember correctly first gear is not synchronized in them. Also, a different bolt pattern on the side cover. Someone correct me if I'm wrong..... LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 -

10-23-2020, 11:32 AM	#7
GMCNUT Senior Member Join Date: Jun 2007 Location: Arab Alabama Posts: 1,809	Re: Rare optional 3 speed overdrive trans Got the trans and it is a non-synchonized 1st gear type trans with a 56 or 57 date code so will work on 60-66 but not date coded to 60-66. $250 for the trans itself - no other OD related parts were present - inquire if interested __________________ My Projects and Toys - All 100% Stock 1972 CST "Highlander" Blazer - 350 auto, PS, PB, A/C, Tilt, Tach, AM/FM & Positraction 1966 Chevy SWB Fleetside BBW Custom Cab, #'s matching 327 V8 & Powerglide, factory deluxe heat, PS, PB, Tinted Glass, sway bar 1961 Chevy SWB Fleetside BBW Custom Cab #'s matching 283 V8 & Powerglide w/ uber-rare Cool-Pack A/C, factory PB, deluxe heat, Clock 1961 GMC K1000 4x4 SWB w/ BBW, Custom Cab and numbers matching 305D V6 engine & 4 spd 1960 GMC SWB Fleetside BBW Custom Cab #'s matching 305A V6 & Hydramatic, factory PB, Clock, Tach, Compass, Hood Jet 1959 Chevy SWB Fleetside BBW Custom Cab w/ rare stainless bed trim, #'s matching 283 V8 & Hydramatic, Deluxe Heat, radio, spotlight 1958 Chevy Cameo #'s matching 283 V8 & Hydramatic, radio, window washers, Factory PB 1958 GMC BBW SWB Fleetside Custom Cab, #'s matching 336 V8 Hydramatic, Factory PS, PB, Clock, RSD, Deluxe Heat & Hood Jet 1957 GMC Suburban Pickup (GMC's Cameo) #'s matching 347 V8 Hydramatic, uber-rare vacuum ashtray, Factory PS, PB, Clock, RSD, Hood Jet 1956 Chevy 3800 1 ton w/ rare 9 ft stepside bed, factory 265 V8 w/ Hydramatic, factory PB, Custom Cab, deluxe heat, spotlight and hood jet.

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