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Columbia Two Speed Parts, Inc.

Specializing in Columbia Overdrive Two Speed Axle Parts and Control Systems . . . Keep those Columbias going ! WEBSITE: . . . or Email:

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Columbia Two Speed Parts, Inc.                                             951.719-4077  
Contact Us via Email at                                                                              John Connelly, Owner
We sell many of those hard to find parts you are looking for, specializing in  Reproduction Repair Axle Parts and Controls for the Columbia Overdrive Two Speed Axle  for Ford V-8 & Mercury 8  1935 - 1948  . . . AND we sell Reproduction Repair Axle Parts for  Lincoln-Zephyr V-12 1935 - 1948.  
See our ad in V-8 Times award winning magazine of the Early Ford V8 Club of America, Inc
Call for more info! Scroll down on each page to see everything !  WE HAVE MOVED, call to get our new ship-to address in Arizona.
We are committed to providing these important components for enthusiasts in this hobby.
We can help with parts like this B-3 Control Valve for 1937-41 Ford & Mercury V-8's !
(we also have B-1 & B-2 control valve for earlier models). Services include repairs & rebuilds too.
        NEW A-17
   "Wings" Decal            B-3 Valve Assembly                  A-17 Billet "basket" assy; Limited Quantities
The above B-3 Valve Assembly is manufactured utilizing the highest standards possible.  The valve body is made from cast aluminum, then it is precision machined and assembled with newly manufactured reproduction parts to duplicate the original control valve. (The B-3 above can be modified to fit Lincoln-Zephyr.)  The A-17 shown above is our new Billet reproduction. Limited quantities produced.  Call for more info (see New Product page).
An Exploded View of the Columbia Axle Housing & Internal Assembly parts is included in our Price List.  And, Installation Instructions and Parts Lists are available by year of your car.  We also have an Owner's Manual/PRIMER for those who want to understand the Columbia better.

We sell over 80 repair/replacement and control parts.  In addition, our services also include:  welding and machining the axle housing & installing A-1-S repair sleeve.
             A-2   Housing Oil Seal
             A-20 assy  Differential Outer Case Bearing & Race
             A-32-K  Synchro Clutch Rebuilding Kit with rebuild instructions
             A-100-K  Differential Screw Locks
             A-200-K  Differential Thrust Washers
             A-500-K  Columbia Gasket Kit
             A-600-K  Vacuum Can Leathers, felt & seal with rebuild instructions
             10051  Gasket Kit, rear axle housing
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Below, is a B-1,2,11-K Pedal Valve Assembly & Selector Valve Assy. for 1935-36 Ford
(the B-1,2,11-K "kit" comes with the B-1A Pedal Valve Assy Push Rod, and also the firewall spacer and B-11 Clutch Lever Extension bracket, pictured below)
BELOW ARE Columbias we have rebuilt/set up for some customers recently . . .  (on mounting stand).  You provide the Columbia, and if our schedule allows, we can assist and do your rebuild. Call for more information:  (951) 719-4077  Mon. thru Friday 8am - 5pm West Coast Time


 We cannot overemphasize how IMPORTANT it is to properly maintain your Columbia overdrive unit.  Please, take the time to learn how to care for and operate your beautiful Columbia Overdrive Two Speed Axle !!!  
 Purchase our exclusive PRIMER(Owner's Manual expanded to include photos and information on the different control systems for different years of cars)   . . . and/or call for information.
*******************  PLEASE NOTE *****************
Check with us if someone trying to sell you parts (or unit) claims that we have rebuilt their unit.  We have heard about such claims when we have only done the bulletproofing.  Give us a call and we will let you know if we rebuilt the entire Columbia or not.
We've Moved !!! 3-1-16
Columbia Two Speed Parts, Inc.
P.O. Box 1587
Please do not ship to us without calling first to get our new Ship-To address.

Request Price List:  Call or Email (include subject line!)
(Provide your name & address & phone for Price List) ... or email address
John, holding a new 
A-24 Diff. Case & Internal Gear Assy,
39 teeth BILLET Alloy Steel.
We carry the following:
  Columbia Housing Assembly & Repair Parts

Vacuum Cylinder & Base Assembly for all models

1935-36 Ford Control Parts & Brackets

1937-41 Ford & Merc Control Parts & Brackets

1946-48 Ford & Merc Control Parts & Brackets


Call or Email for a current Price List,

(includes an exploded view of unit) 

A-20-F Ford-Side Bearing & Race
B-3-X Control Valve for street application
B-37-K Speedo Adapter Gasket Kit
B-37-TA  Speedo Thread Adapter, male to female
B-49K Manifold Spacer Kit w/gaskets & 3 studs for
1935-41F; 1939-41Merc
Columbia Overdrive DECAL for your windshield
Instructions for Installation (need year of your car)
Parts Lists (need year of your car)
Enamaled MEDALLION for license plate
PB-1 Pinion Bearing Set, includes lock plate
A-35/36K Oil Baffle Upper & Lower
TK  Tubing Kit:  3/8" copper & neoprene





Resleeving Axle Housings

Modify Axle Housing

Modify Cross



Repairing / Rebuilding Components

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                        Many Customers purchase the

"Wings" Medallions & Hat Pins. 

Columbia License Plate Medallion

3-Color Enamel, high quality

Check out the MEDALLIONS PAGE.

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 Below is the B-3-X Control Valve for Street Application (with switch) 6 or 12 volt



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BELOW:  Columbia side only.


    Proper position of the A-60 piston rod inside the

A-49    Vacuum Assembly



Hat Pin ... get one while they last !