Hubs Research Archives

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Sears Selectro 19 Spline Hubs on eBay

• CATEGORIES: Features, Parts • TAGS: .

These appear in good shape. You can learn more about the Selectro history here.

View all the information on ebay

“I don’t know if Selectro made these for Sears? But the Selectro ones look like these. You don’t see many with the Sears name, I believe they are 19 spline. 3″ across bottom gear. Need cleaned up and greased.”


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Allstate Locking Hub Rebuild

• CATEGORIES: Features • TAGS: .

Here’s a nicely detailed look at the rebuilding of the Allstate Locking Hubs/aka Husky Hubs.


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Selectro / Husky / Dualmatic Hub Overview

• CATEGORIES: Features • TAGS: .

Once again, this is more a working post than a polished one. And, it’s a long one. It kept growing and growing as I learned more (and became more confused).Of course, I am left with more answers than questions.

Essentially, I’m trying to figure out when Selectro hubs popped onto the 4WD scene, who controlled them, and how they evolved. That led to looking at Husky, Dualmatic, Watson and FreeLock hubs. I don’t have all the answers just yet … here we go …


Map of companies related to Jeep products in the 1950s-1970s. You can learn more about Thor and White Automotive here.and Free-Lock here.


1959/1960?: The Husky Company launches it’s line of Husky Hubs out of Aurora, Colorado. This hub one of two pieces of evidence of the Husky Company’s existence in Aurora; it has the Husky Company name and location on it:


A second piece of evidence was uncovered on a document found by Maury; the Husky Company was located originally in Aurora, Colorado.

Based on the information on the hub, the Husky company already had a patent awarded (not just filed, but awarded). So, which patent was that? My best guess at the moment is that this 1958 patent awarded to Clark Peterson has the most elements in common with the Husky Hub.

Given there were a couple intervening years between the patent (awarded in 1958) and Husky Hub (unclear when it was brought to market, but I’m guessing 1959/1960), it seems possible that the company altered the design before manufacturing it, which could explain the differences between the patent and the finished hub. The biggest reason I think the two are related is that both the patent and the Husky Hub have a narrow bolt down the center, a unique design not seen in another other hubs.

1961: In 1961 a new name was associated with the Husky Hub: Trade Winds, Inc, out of Boulder, Colorado. My best guess is that the Husky Hub company lacked capital, so it turned to Trade Winds (perhaps which bought a controlling stake in the Husky Company?) to re-introduce the Husky Hubs.

The company’s name is shown as “TRADE WINDS” on the hubs, but as “Tradewinds” in various trade journal ads, which is where it focused its advertising (such as Roads and Streets, American Beef Producer, and Pacific Chemical and Metallurgical Industries). It appears the hub ads only appeared during 1961 (and possibly 1962). I can find no evidence that text ads were placed later than that. Here’s an example ad:


This snippet appeared in a 1962 book, suggesting the Husky hubs may have been launched in 1961. Two other sources also indicate that Tradewinds had launched the Husky Hub in 1961

This detail image of a brochure for the Husky Hub is undated, but clearly shows the Trade Winds name.


This is a detail shot of a Husky Hub brochure from the 1960s.

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Various Hubs Sacramento, CA $100/each


Some hubs for sale.

“10 spline 6 bolt, $100 a pair”

Watson Hubs (originally patented by Dualmatic):


Selectro Hubs Made by Dualmatic/Husky:


4 Wheel Drive hubs private labeled, but manufactured by Dualmatic/Husky:


Allstate Hubs private labeled by and manufactured by Dualmatic/Husky:


Warn Hubs:warn-hubs-sacramento-ca

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1949 CJ-3A Windsor, CO $2500


UPDATE: Still Available.

(11/05/2018) This 3A appear to have an early set of Dualmatic hubs.

“This is for a 1949 Willys cj3a jeep with a running 6 cylinder Ford engine but no title, good ranch or hunting rig for only $2995.00 cash.”

early-dualmatic-hubs 1949-cj3a-windsor-c1 1949-cj3a-windsor-co2

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Dualmatic Selective Drive Brochure

• CATEGORIES: Advertising & Brochures, Features • TAGS: .

I’m way behind on my document scans. I thought I’d catch up today, but between our search for a new bed (Ann’s back is giving her issues) and the fact that Ann accidentally left the plastic bbq brush (why???) in the bbq, which melted into an ugly mess when I turned on the bbq, forcing me to clean the whole thing, all meant that I didn’t have time once again for scans.

Anyhow, here’s the promised Dualmatic brochure. The brochure is directly and has some stains, so they aren’t the best scans. But, they’ll do for now.

dualmatic-hub-brochure-lores1 dualmatic-hub-brochure-lores2 dualmatic-hub-brochure-lores3 dualmatic-hub-brochure-lores4

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1953 M-38A1 Penryn, CA $2777

• CATEGORIES: M-38A1 • TAGS: , .

This early M-38A1 has some rare Dana HubLok hubs. It also has a Warn/Saturn overdrive and a Meyer hardtop.

1953-m38a1-perynn-ca0 1953-m38a1-perynn-ca1 1953-m38a1-perynn-ca2 1953-m38a1-perynn-ca4 1953-m38a1-hublok-hubs-perynn-ca

“1953 Jeep Willys M38A1 (Maybe) definately Army Style! Clean Title, Registered on non-op currently, F-head 4-Cylinder Engine, 3-Speed Manual- IO Range/Overdrive – Power Steering, Manual Locking hubs, Recent Valve job. Runs good. Please e-mail with a name and phone number and I will call back.”


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Cutlas Hubs Juliustown, NJ $99


Maury spotted these early Cutlas hubs on eBay. The seller owns “New Jersey’s largest Jeep parts depot”.

View all the information on eBay


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NOS Chrome Dualmatic Hubs **SOLD**


UPDATE **SOLD** Was on eBay.

Starting bid is $300.


“Up for auction is a pair of NOS Dualmatic locking hubs. They are Chrome and in excellent condition. Comes with instructions and original decal, bolts, and locking clips. Unfortunately I do NOT have the parts catalog so I can NOT ID these by make and model. But I can give you dimensions: 4.375 overall diameter, 3.125 long, 10 internal spline, 3.750 bolt hole pattern center to center. The dualmatic # 80. I am selling these as is as described. Please be sure they are what you’re looking for before bidding. Please email with any questions. High bidder pays$16.50 for S&H.”

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Dualmatic Hubs Brochure

• CATEGORIES: Advertising & Brochures, Features • TAGS: .

I won this rare Dualmatic brochure on eBay. I’ll follow up with more detailed pics once I receive the document.

dualmatic-hub-brochure1 dualmatic-hub-brochure2 dualmatic-hub-brochure3 dualmatic-hub-brochure4


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Perfect Circle Company Hubs $180

• CATEGORIES: Features • TAGS: .

Blaine found a set of NOS Perfect Circle hubs, which look to be private-labeled versions of the Selectro hub manufactured by Dualmatic. Unfamilar with Perfect Circle, I wondered why the company would private label a set of hubs.

It turns out that Perfect Circle had been a leader in the development of piston rings for several decades. In 1963, the company was purchased by the Dana Corporation. It’s possible that relationship led to the private labeling of the hubs. (Read the whole Perfect Circle history here)

These particular hubs should fit the Dana 27 axles, as that was the standard axle on early Scouts (but I’m not expert on the Scouts).

We’ve seen the above hubs branded under multiple names, including Dualmatic, Selectro, Perfect Circle, Free-Lock, and others. But, where did the hubs originate?

Unfortunately, as this point I only have theories rather than actual answers. One theory is that they were developed by Free-Lock, but not patented, prior to Free-Lock’s demise. Somehow, Dualamatic/Husky ended up with the hubs (probably purchased Free-Lock’s assets) and then Dualmatic manufacturing them under the Free-Lock brand, then other brands.

My second theory is that the hub is based on this hub patent from Clark Peterson in 1955.


It has the spring system and It appears the entire top of the hub twists. But, there are some differences. The central bolt does not exist to hold the hub in place, instead side bolds secure the top. Maybe someone who has a set of these hubs can compare it to the hub design above? Below is a schematic of a Dualmatic hub for comparison.



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Set of Warn WL-2 Locking Hubs Commack, NY **SOLD**


UPDATE: **SOLD** Was $150.

Original box, too!

“Selling (2) two Willy’s Jeep WL-2 Locking Hubs–Warn Mfg. Co.
In original box; asking $150 for the pair.”


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1951 CJ-3A Blanca, CO $6800


UPDATE: Price dropped to $6800.

(08/24/2018) This might have a rare set of Thor hubs.

“1951 Willys CJ3A. original Willys Go Devil flathead 4 cylinder engine, T-90 3 speed, D-18 2 speed transfer case. Runs like new, All original except, Aluminum radiator, 12 volt electrical system, Electronic ignition distributor, 15 inch wheels with Federal Couragia M/T LT 235/75R15 Tires. Has a New (1 year old) Bestop soft top. It is kept in my garage. 66,xxx original miles.
$14,500 Firm!”

1951-cj3a-thor-hub-blanca-co 1951-cj3a-blanca-co6 1951-cj3a-blanca-co7 1951-cj3a-blanca-co8 1951-cj3a-blanca-co9

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1979 EasyLok Hub Brochure

• CATEGORIES: Advertising & Brochures, Features • TAGS: .

A big thanks to Jim for finding this brochure in old box of files, then sending it my way gratis. It shows the EasyLok Hub, manufactured by the Mechanex Corp, a devision of Tenneco, out of Englewood, Colorado.  You can learn a little more about the EasyLok hub’ s history in this post.

Mechanex Corp patented another hub in 1978, but I don’t recognize the hub.

1979-04-easylok-hub-brochure-650px-1 1979-04-easylok-hub-brochure-650px-2 1979-04-easylok-hub-brochure-650px-3 1979-04-easylok-hub-brochure-650px-4



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1945 GPW Dana Point, CA **SOLD**


UPDATE: UPDATE: **SOLD** Was $6500. Has Watson Hubs.

(11/02/2016) Runs.

“Runs well but not drivable, will need some restoration. Clear title with original black California license plates.”

1945-gpw-orangecounty-cay 1945-gpw-orangecounty-ca8 1945-gpw-orangecounty-ca-9


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1958 Cutlas Power-Lock Brochure on eBay

• CATEGORIES: Advertising & Brochures, Features • TAGS: .

This Power-Lock was the first hub patented, copyrighted, and sold under the Cutlas brand. As I mention in my Free-Lock article, for reasons unknown, the president of Free-Lock became the president of Cutlas. Even more curious, the last two model of Free-Lock hubs were WL-57 and WL-58.

And, what was the Initial model of the first Cutlas hub you ask? That would be WL-6, shown below:

View all the information on eBay

cutlas-powerlock-hub-brochure1 cutlas-powerlock-hub-brochure2


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Just a Couple Posts Today

• CATEGORIES: Features • TAGS: .

I spend the last couple days driving to, then back from Seattle. Dad’s been saying a few odd things, so I wanted to see how he was doing at his new Rehab facility. He may have the start of some dementia … on the joys of aging.

Because of my drive over on Sunday, I lost out on the chance to get this Dualmatic Sales Demo hub. But, I did score some cool wagon/truck/jeepster brochures fairly inexpensively. So, I’ll be sharing those at some point.

Here’s the demo hub. There’s not a good pic of it, but there’s plastic around the edge so viewers can watch how the levers engage/disengage the hubs.

dualmatic-demo-hub1 dualmatic-demo-hub2


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2 12 Spline EasyLok Hubs Parkersburg, WV on eBay


Here’s a set of EasyLocks, but they appear to be 12 spline? They may be designed for a Land Cruiser (’71 axles are 12 spline).

View all the information on eBay

“From an early model Willys Jeep truck, may fit other four wheel drives.
BestLok or EasyLok?
6 Bolt (bolts included)
12 Spline
Lock or Free settings, turns freely”


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Warn Summer Hubs Longview, WA $184.99


The seller is looking for other early vintage hubs to purchase.

View all the information on eBay

“Warn Vintage Summer Free Locking Hubs
Wanted: new old stock locking hubs in small or large quantities”



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Dualmatic Hubs Butte, MT $400


UPDATE: Still Available.

(11/14/2018) Kris has this set of rebuilt Dualmatic Hubs. Email him at

dualmatic-hubs--1 dualmatic-hubs--2 dualmatic-hubs--3 dualmatic-hubs--4

“These are a set of Dualmatic Lock-Out Hubs. 10 spline. They were taken off a mid-50’s Willy’s Truck. These are the “short model”. With the cap they’re about 2″ tall. This set has been fully restored. They have been thoroughly cleaned, wire wheeled, sand blasted then powder coated. Not Painted!! New Dualmatic sticker on the center of the cap. These will even come with the correct stainless steel dual-tab lock washers that have seemed to all but disappeared. The stainless steel mounting bolts are not included, however the cleaned originals will be. Continue reading

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10 Spline “Summer Hubs” Napa, CA eBay


UPDATE: These are back on eBay. Starting bid was $85.

(10/12/2018) I’ve not seen these elsewhere. Anyone recognize them?

View all the information on eBay

“You are buying a set of “summer” hubs for your Willys or scout. These hubs are for a 10 spline Dana 25 front axel. They are designed to not lock. They will need a cleaning and grease job. Please look at the photos and ask any questions that you may have.”

summer-hub-10-spline1 summer-hub-10-spline2 summer-hub-10-spline3 summer-hub-10-spline4

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Thor? Hubs Petal, MS **SOLD**

• CATEGORIES: Features, Parts • TAGS: .

UPDATE: **SOLD** Thes were on eBay.

They appear to be Thor Automatic Hubs.

“this is a good used set of 10 spline – 6- bolt lockout hubs for willys jeeps – the screwdriver slot is how you lock them in and out -”

thor-hubs-richard1 thor-hubs-richard2

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Cutlas Hubs Phoenix, Az $100


I think they are the Cutlas Selective Drive hubs.

“These are rare . Stronger than any hubs out there. Dont take my word for it, look them up and see what folks say. These will fit early CJs , willys .”


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The “K” Style Flanges from The King of Jeeps

• CATEGORIES: Features • TAGS: .

I purchased a 1957 Berg’s Truck and Parts Co (Aka the King of Jeeps) Catalog off of eBay. It included this flyer for a set of hubs I’ve never seen. Anyone ever run across these? (You can compare them to other flanges/summer hubs here:

1957-jeep-king-berg-parts-catalog-cover k-flange-freewheeling-hub-jeepking

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BestLok and EasyLok Hubs

• CATEGORIES: Features • TAGS: .

UPDATE: Information about Husky and Dualmatic has been updated and more closely examined here.

Maury and I have been trying to determine how BestLok and EasyLok hubs are connected and how they are connected to Warn, Husky, and Dualmatic. The short answer is that we don’t quite know yet. But, below is what we do know. (Note, while Husky and Dualmatic are mentioned, it’s not a full history of either hub, histories I do need to address at some point).

In January of 1972, Richard Williams filed a patent, assigned to Warn-Belleview, for a new type of hub. Below is the image of that hub.


What’s curious is that there’s no documentation that Warn ever sold these hubs.

Even more curious, by July of 1972 this exact hub was produced and sold under the brand EasyLok, as advertised here, in the July issue of Four Wheeler Magazine:


Why these hubs weren’t sold nor branded under any traditional seller of the time is a mystery to us.

Earlier this year, Maury spotted a set of hubs with the Warn patented design that were manufactured in 1982. Maury managed to get ahold of photos that show the hubs were manufactured and warranteed by BestopDualmatic (a joined company formed when Wynn industries combined the companies around 1974).


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