Chain Drive E ?

[41chevy]

Copied this from E pray Bay 1942 photo of and Oregon Log Hauler.

[j hancock]

KooL! Late ones were called model FP.

[39 Baby Mack]

There was was also an ER and ES that were chain drives.

Ron

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[j hancock]

There was a little overlap in production.

Model ER 1936-1941 359 units

ES 1938-1940 75 units

FP 1940-1942 241 units

[mowerman]

nice thanks bob

[Vladislav]

There was a little overlap in production.

Model ER 1936-1941 359 units

ES 1938-1940 75 units

FP 1940-1942 241 units

Still wonder what was the difference between ES/ER and FP. Different chassis components?

And what was the reason to produce two about the same model trucks?

[j hancock]

I looked at the Montville Mack book and there is nothing mentioned specifically other than the ER (20,000 gvw) and the ES (23,000 gvw) were replaced by the larger FP at 26,000 gvw.

Mack must have felt the lighter weight E model trucks would serve customers well with standard rear axles but the FP took care of the customer that still demanded chain drive with a more capacity.

[41chevy]

I looked at the Montville Mack book and there is nothing mentioned specifically other than the ER (20,000 gvw) and the ES (23,000 gvw) were replaced by the larger FP at 26,000 gvw.

Mack must have felt the lighter weight E model trucks would serve customers well with standard rear axles but the FP took care of the customer that still demanded chain drive with a more capacity.

Not only capacity but Sterling lasted so long with chain drive because it also gave them more ground clearance off the paved roads.

I've got photos from a show of a chain drive Peterbilt logger too. Paul