Changing Balljoints

[reddpup]

I have a dumb question about what balljoints to get ( I am going with Moog )
I just don't know what axle rating I have because it seems there are several options and I don't know what I have other than a 1992 D250 5.9L Cummins Club Cab.There is 3000#,3300# and 4000 lb axles. Any help would be appreciated greatly. I bought 4000 lb ones and I was told they won't work.
Part# Moog K7053T.Lower Balljoint
Thanks

[diesel freak01]

from what i understand all the diesel trucks have the 4000# axles so they should work.

[reddpup]

Thanks for the response,that is what I figured just wanted to be sure before I started since this is my only vehicle I didn't want to be stranded with the wrong parts.