PLS rims - Page 2 - Steel Soldiers::Military Vehicles Supersite

jimbo* · 12-10-2008, 20:57

Correct me if I am wrong, but aren't the wheels on the M123 24" because 20" wheels won't fit over the brake drums?
I realize 24" rubber was more suited to the super-heavy loads encountered during the 1950's and 60's, but the drums on the M123's are huge!

M1075 · 12-10-2008, 21:32

Quote:

Originally Posted by Westech

well the LHS and the PLS are the same thing.. just one more axle. So it not going to work on your 10 ton. If you want rims I bet I can get new ones but there going to be in the 700 ish range. I know the people who make them for the military.

( I drive LHS's and PLS's for the army)

HEMTT and PLS wheels are different bolt patterns.

HEMTT is the common 10x11.5" bolt circle with 8.75" center hole.

PLS is the larger 10x13.25" bolt circle with 11" center hole.

M1075 · 12-10-2008, 21:33

Quote:

Originally Posted by Westech

boy not that I have seen...I think they may be talking about the flat rack trailer. that takes some odd ball size rim

PLS truck and trailer take different rims, but the bolt pattern is the same.

M1075 · 12-10-2008, 21:35

Quote:

Originally Posted by jimbo*

Correct me if I am wrong, but aren't the wheels on the M123 24" because 20" wheels won't fit over the brake drums?
I realize 24" rubber was more suited to the super-heavy loads encountered during the 1950's and 60's, but the drums on the M123's are huge!

I replaced the 24" wheels on my M919 with 20" HEMTT wheels and had minimal clearance issues on the front drum. I haven't measured a 10 ton, but it might be possible to run 20" wheels with a little machining.

123mack · 12-10-2008, 22:15

The issue of fitting the rims over the drums is why I need the I.D. of the rims. I first got the idea of singles from a photo in p381 of Fred Crismons' book "U.S. Military Wheeled Vehicles". In the photo is shown a M123 with singles on the rear axles , and standard 24" rims on the front. It could be an illusion, but the rear rims appear smaller in diameter. BTW, my M123 is a gasser made in June 1956.

Dirt71 · 12-11-2008, 19:20

Quote:

Originally Posted by jimbo*

Correct me if I am wrong, but aren't the wheels on the M123 24" because 20" wheels won't fit over the brake drums?
I realize 24" rubber was more suited to the super-heavy loads encountered during the 1950's and 60's, but the drums on the M123's are huge!

The brake drums on the M123 are 18" Dia. the same as a 5 ton which means a 20" wheel will work, the problem is finding the correct bolt pattern which is 13 1/4 as I have been thinking about ways of doing this myself. But I don't want to single out my truck I would like to keep it with the duals. Let me know how it works out for you M123 Mack. Also still looking for those pictures you were going to PM me of your truck.
Thank you David