M923a1 Detroit lockers maybe?

[Suprman]

I recently won a m923a1 and it was delivered today. I took it for a spin it has some good grunt to it. When turning it feels like it has lockers. It has the pto and fording kit but no winch. It was rebuilt and the data plates were replaced so at one time it could have had the locker info plate. Is there any way to tell other than opening up the diffs?
Will

 

[poorman4x4]

jackstands

 

[Farmallmilitary]

Probably marine truck.

 

[Suprman]

I was thinking that too but it's not marked as such anywhere. It went thru red river depot in 04 and only has around 1200 miles on it since then. It's my first a1 my other trucks are all a2s.

 

[Farmallmilitary]

What kind of bed does it have? ISO bed?

 

[Suprman]

No it's a regular bed. Could have been replaced in 04 when it was overhauled.

 

[Farmallmilitary]

If it has lockers when ever you coast around a corner or just let off the throttle you should hear a small clunk in the rear end. This is the sound of the lockers disengaging.

 

[Suprman]

I will play with it tomorrow.