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The Correct Model A Jack

There were four suppliers for the Model A jack:  Ajax – Racine, WI; Walker – Racine, WI; Auto Specialty – St. Joseph, MI; and Noblitt-Sparks – Location unknown.  All Model A jacks were painted black enamel.

The A-17080 jack was a ratchet type with folding 2” top extension, 10 ¼” total height.  It was a carry-over from the Model T Ford and was discontinued as a Model A jack about August 1929.  The handle (A-17081) was also a carry-over from the Model T.  It was made of ¼” flat steel, 7/8” wide and 16” long.  It had a tire iron curve on one end and a round hole in the other which line up with the hole in the jack sleeve when in use.  The handle was painted black.

In October 1928 the A-17080-A jack, made by Walker and by Ajax, was introduced.  It was similar in design to the earlier type, except it did not have the top extension.  The Walker and Ajax versions were nearly identical except for the shape of the bases.  The Ajax jack had square corners on the base, while the Walker was rounded.  Both jacks were 9 ½” high and used a new handle (A-17081-A) made of ¼” x 7/8” flat steel, 20” long with a quarter twist 3-7/8” from the handle end and a tire tool on the opposite end.  This jack was used thru November 1929.

In November 1929, the A-17080-B1 jack, also made by the Walker and Ajax companies, was introduced.  It was similar to the previous model, but was 8 ½” high because of the smaller diameter wheels used on the 1930 models.  The handle was the same as the previous model.  This jack was discontinued in August 1930.

In January 1930 jack A-17080-B2, manufactured by Auto Specialty, was introduced.  It was 8 ½” high and was the first screw type jack.  The base and screw housing were once cast steel piece with no rivets.  For this jack a new handle (A-17081-B) was required.  It was made of 3/8” steel rod and was 39” long when extended; 19-3/4” folded.

The A-17080-B2 jack was replaced in March 1930 by the A-17080-B3 jack made by Ajax.  It was a screw type jack with open gears, an enclosed screw and 8 ½” high.  The handle (A-17081-C) was made of 3/8” steel rod, was 35” long, but did not fold.  The black painted handle was 1” long, 3/8” squared end to fit in the sleeve on the jack.  It did not fit under the front seat of most Model A’s and was not usable with other jacks.

The A-17080-B3 was replaced in August 1930 by A-17080-C1 made by Auto Specialty.  Like the earlier Auto Specialty jack (A-17080-B2), the base and body were one piece.  The gears were enclosed in a pressed steel casing with no rivets.  It was 8 ½” high.  It used the same folding handle (A-17081-B) used on the earlier jack.  These jacks were used until the end of Model A production.

Jack A-17080-C2, made by Ajax, was introduced in August 1930.  The gears and screw were enclosed with a pressed steel casing with no rivets.  The 8 ½” high jack used the folding handle (A-17081-B).  This jack was also used thru the end of production.

In March 1931, still another screw type jack (A-17080-C3) was introduced.  This 8 ½” jack was made by Noblitt-Sparks and had a pressed steel housing, which was riveted together.  It used the same folding handle as the Ajax and Auto Specialty jacks.

 

                           Jack Handle

                                                                                                     Jack Handle (New Design)

This tech tip was provided by Walt Wawzyniak and printed in the September 2004 “A” Quail Call. 

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