Model T Ford Period Accessories

When it comes to adding to the basic features of a car, the Model T Ford accessories list became immense. With accessories for improved appearance, improved braking such as the Rocky Mountain brakes, Model T Ford auxilliary transmissions such as Warford, or modern day ignition kits such as the Truefire owners were and still are spoilt for choice.

If you have any pictures of period accessories, we'd love to see them, let us know using the contact us page.

Here's a few Model T Ford period accessory ads I found.

Auto oiler ad

Manifold preheater

The Gish Ever-Ready Auto Oiler

I sourced this Gish Ever-Ready Auto Oiler about a year ago, still packed in the box, unused from the day it was made in the early 20's. The box forms both the advertising of the product, as well as the instructions for installation

Oil Reserve Tank

How does it work?

The Ever-Ready oiler comprises of an oil reserve tank that mounts on the engine against the exhaust manifold. The tank holds the oil reserve and an actuating solenoid. A filling indication light that clamps onto the dasboard and a replacement transmission inspection cover and switch assembly, filler feed pipe and filler cap extension.

The operation works as follows: The switch assembly is fixed to the underside of the transmission cover plate and collects oil splash whilst the engine is running. When the engine has sufficient oil, the amount of oil splashed up into the switch collection dish is sufficient to overcome the spring tension and keep the switch disconnected. Once the oil level drops, the collection dish holds less splashed oil, rises up and makes an electrical connection. The power to operate the system comes from the magneto post, the power running through the switch to the terminals on the reserve tank.
The Ever-ready oiler feed pipe
When the solenoid opens, the oil is allowed to flow through the filling pipe, into the engine filler via an extension tube that the pipe enters, allowing the engine filler cap to remain on.

At the same time, the dashboard light, also connected to the tank terminals, illuminates. Once sufficient oil has been released into the engine, the switch collection dish is weighted down enough to disconnect the switch and the tank solenoid closes, stopping the oil flow.

These are images of the Gish Oiler box.

Installation Instructions

Product information

Model T Ford Auxilliary Transmissions

When considering auxilliary transmissions, these are largely grouped into where they are located when installed and whether they supplement of replace the original Model T Ford unit. Loosely, they are classified as either front or rear mounted. Front mounted units are typically installed directly behind the standard engine transmission unit and before the driveshaft, with rear mounted units fitted between the end of the driveshaft and the front of the differential housing.

Below are some examples of the more common brands that fit into these categories:

Front Mounted

Woodward (or Woodward & Roe)
Jumbo and Jumbo Giant

Rear Mounted

Rocky Mountain
Jumbo Planator



Let's look in a bit more detail at those that are considered the more desirable units, Jumbo, Muncie and Warford.


The Muncie Model T Ford Auxilliary Transmission

The Muncie transmission was produced by the Muncie Gear Company of Muncie Indiana. Muncie produced, like most other companies, a selective sliding gear transmission. This simply means that the shift lever, slides a gear along a shaft engaging other gears of different ratios and reducing or increasing the revolutions through the output shaft. Muncie provided 3 forward gears and one reverse, so in conjunction with the Ford transmission, created 7 forward gears ratios and 5 reverse. (3 in Ford Low gear, 3 in Ford High gear, the 7th comes from operating both in reverse which actually turns into a forward)


Jumbo Giant Transmission for Fords

In 1923 the Price-Hollister company in Illinois began building the Jumbo transmission. Like the Muncie, this was a selective sliding gear transmission and in conjunction with the Model T Ford transmission, also produced 7 forward speeds and five reverse. Transmissions were provided for both the car and truck market, but in 1924, the company began producing the Jumbo Giant. This was basically a "beefed" up version of the Jumbo transmission, specifically built for the truck owner.

Warford The Warford transmission, also a selective sliding gear unit, was originally produced as the Conord transmission, a rear mounted unit in 1917. At this time, the Ford owner could purchase the unit with either an underdrive or overdrive and with 3 forward gear ratios, which combined with the Ford unit, provided 6 forward ratios and 3 reverse. The Partridge, Singer and Baldwin company bought the rights to the transmission on 1921 and later that year began marketing the transmission as a front mounted unit called the Warford. This continued on until 1923 when the company changed its name to the Warford Corporation. The Warford name was cast into the side of the casing like many brands of the day and is easily identifiable. One factor that raises the popularity of the Warford transmission is that a modern, improved version of the transmission is available for sale today! Perhaps the greatest downfall for Model T Ford enthusiasts is that the majority of all of these sliding gear transmissions had no synchronising of gears, and are commonly known as crash boxes, the crash being the clashing of gear teeth if the operator didn't get change made cleanly. This over the years resulted in the wear and damage of the gear teeth and can result in "jumping out of gear". The only options available if you locate a damaged box are to locate some decent second hand gears, or, have new gears made (quite expensive). What seems to be a popular emerging trend is to change from the Ruckstell 2 speed axle to the new KC Warford transmission which provides the nostalgia of a period accessory but brand new! This link takes you to Texas T Parts who are a distributor of the new Warford. You'll find free downloadable data sheets and pricing here.

Rear Mounted Transmissions

In general, the rear mounted transmissions were basically the same concepts as the front mounted units, although their location required long shifting rods bringing the controls back to the vehicle driving position. A perceived downfall was that, being at rear of the vehicle and directly in front of the differential, the transmission and therefore its weight, had to move up and down with the rear axle, rather than being fixed directly to the engine/transmission pan with bracing to the chassis. One that differed from the pack was the Jumbo Planator. Offered late in the Model T life, the Planator was introduced in 1926. Price-Hollister offered the Planator as a rear mounted, two speed planetary gear transmission. This provided two forward gears and therefore in conjunction with the standard transmission, 4 forward and 2 reverse gears. Advertising of the day pushed the fact that it was a planetary transmission, and one can only assume, gain credibility of this choice from the reliability of the Ford planetary transmission, that 80% of the gears were standard Ford parts (so presumably cheap and easy to obtain). It was comparatively cheap to the sliding gear transmissions at $49-50, was easy to install and easy to operate.

Universal Auxilliary Transmission

This Universal brand transmission is a rear mounted model suitable for Model TT Ford Trucks

Universal rear mounted transmission for Fords

We're looking to expand our library of Model T related photo's. If you've unearthed that treasured gem of a Model T Ford period accessory, why not share it with everyone. We'd love to see what is out there!

Have you unearthed a great Model T period accessory?

Have you found a period accessory from the Model T? Catalogues show that there were hundreds available in the Model T's heyday.
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Ford Model T Tire Carrier Period Accessory 
This is my 1924 Ford model T with the Period Tire carrier. The car is original, never restored although I did a little research and it had a top and seat …

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Come back here soon, or subscribe to the site blog (use the orange RSS feed button on the left)as I'll be featuring some photo's of a few different transmissions including some of the common wear problems shortly.

Current accessories

There are quite a few accessories now available from various parts suppliers (check them out in the Spare parts page)

I will be featuring various popular products, as well as new one's to the market on this page as they become available.

If you'd like to keep up to date as they are added, subscribe to the site using the orange RSS button on the left. (if you're not sure about this, check out the "What's new" page, Model T Ford blog that explains it all)

The current list of product available is quite amazing, some are the High compression "Z" Head, True-fire ignition system, modern style alternators, reproduction Warford auxilliary transmission, Kevlar bands... The list goes on.....

Below are some links to featured products:

True-Fire True-Fire Ignition

My experience with the True-Fire system.
The Z Head Read about the Z head here.
The Model T Ford Transmission Screen Read about the transmission oil screen here.

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