Castor Dolly For 30 CWT Truck - Checking the Mathematics

[Lionelgee]

Hello All,


I measured the wheel base and it is 159 inches. The front spring hanger is broken so the axle is skewed. This means the measurement I took is only approximate.

I also just found Mike Kelly's posting from the 04-04-16, at 01:55 accessed from http://www.mapleleafup.net/forums/sh...21&postcount=5

Mike wrote:

I have the 1940 GMH NASCO parts book . The front cover of the book states "SPECIALLY COMPILED FOR THE AUSTRALIAN COMMONWEALTH MILITARY FORCES" . The book is for sedans and trucks

The 1940 Chevrolet truck was series 13, 14, 15. The model 15 was 158 1/2" wheelbase ( yours ? )

With my measurement of 159 inches; and Mike saying the model 15 had a wheel base of 158.5 inches, it matches my truck being a 15-40 E2

Mike wrote that the 15-40 E2 has a ... Chassis and cab with special 10ft. 6ins x 7ft GS Wagon with canopy top- Standard truck chassis Dual wheel with 7.20 X 6 pierced disc wheels rear axle ratio 6.166 to 1

One message identified the title of the book I am still trying to track down, and what model my truck is.

Next question... was the 15-40 E2 a 30 CWT or 1.5 ton truck?

Also, some of the Chevrolets had the model "WA". Is this the 1940 model a "WA" Is the use of "WA" an Australia designation or an American one?

My model was only produced from 1939 to 1940, in 1941 the head lights changed to being mounted to the mudguards and the front grille changed from just having horizontal bars to the 1941 having a mixture of horizontal bars on top and vertical bars in a sort of pear-shape.

There was a difference of one horizontal bar in the grille between the 1939 and the 1940 - I cannot remember which year had the most bars? My 1940 Chev has 16 horizontal bars on the grille below the Chevrolet emblem top piece.

Kind regards
Lionel