CMP weight

[Grant Bowker]

Unfortunately, Vol 4 of the AEDB design record that gives cab and chassis specifications doesn't list weights.
Vol 5 of the AEDB design record the 2C1 (welded steel) body weight as 1189 pounds including tarp etc., the 2H1 (composite wood/steel) weighs 836 when similarly equipped and the 2J1 (bolted steel) is listed at 1220 pounds.
The same Vol 5 lists both the C15A and F15A with steel bolted body at 7225 pounds.

7225-1220=6005 for the cab and chassis.

BUT - I have reservations about these numbers. I doubt that the F15A and C15A were within 5 pounds of each other due to the different drivetrains and other detail differences. Also, they don't state whether the weights are for cab 11 or cab 13 trucks (photos over the text are a mixture). Thirdly, they list the complete 15A with composite body at 7336 pounds (heavier than with the all steel body, but the bare body is listed lighter and mounted on the same chassis). This could be due to differences Ford/Chev or cab 11/13 but this isn't stated. Early/late production could also make a difference with runflat/spare, roof with square/round/no(/sunshine) hatch to consider.

[Jordan Baker]

I would think the run flats used on the earlier truck would add considerable weight.

[Grant Bowker]

Originally Posted by Jordan Baker

I would think the run flats used on the earlier truck would add considerable weight.

Without research, my uncertainty was the net gain/loss between 4 runflats and 5 regular assemblies. I knew runflats felt heavy to handle, the numbers show how much.
From AEDB Vol 4, for 9.00-16 (to suit 15A trucks) (weights vary by tire brand):
Pneumatic - cross country: tire&tube approx. 90 pounds, wheel 67 pounds, 5 assemblies = 785 pounds
Pneumatic - highway: tire&tube approx. 87 pounds, wheel 67 pounds, 5 assemblies = 770 pounds
runflat - cross country: tire&tube approx. 136 pounds, wheel 67 pounds, 4 assemblies = 812 pounds
So, 4 runflat assemblies total about 30 pounds more than 5 cross country pneumatic assemblies.

However, for fun I checked 10.50-20 sets and they come out about equal for runflat and pneumatic cross-country tires and if you choose the heaviest pneumatics, the set actually weighs more than the runflat set.

[Jordan Baker]

Well It would be fair to say most women would find a net gain of 30lbs a considerable gain.

[rob love]

Since we are only talking about a cab and chassis though, there would not be a spare tire involved, so the weight difference would be closer to 200 pounds on a cab chassis only.

[Luke R]

Thanks for all the Info guys!
Cheers