If you are going to put new ones in, dont get cheap ones !!
You should be able to match the cup & cones by the numbers on them especially if there has been replacement in the past. You must have matching cones & cups as there are many variations in bearings for any given shaft & hub sizes. The roller angle is the biggest concern.

__________________
Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving