I have been out of the tyre industry for quite a few years now but never heard of 17" truck tyres, unless they are off a very old truck going way back. If that is the case you will have to Google that size and be prepared to pay up big time for a Chinese made tyre.
Cheers Cobba & Cobbarette
Coopernook, The Centre of our Universe.
Both Dodge and IH used 17" on the intermediate size trucks ......they were hard to find even when the trucks were new.....a 510a has standard 5 stud wheels ,and a lot of Jap wheels will fit....However I would go to tubeless,being a lot easier to find tyres at the right price.
17.5 is the rim size for tubeless. Need to remember that the old 17" had a 100% profile (height) whereas all tubeless have a lower profile, 85% at best meaning that for the same width (measured in metric) they are of smaller diameter. 17.5" tubeless are a direct equivalent for 15" tube type. You also need to pay attention to load rating (the old ply rating is no longer good guide to load capacity on tubeless) and speed rating as these can vary by quite a margin and not neccessarily related to price. Considering the tyre diameter conundrum you might consider fitting tube type 20" rims or the less common 19.5 tubeless.
Five stud 20" Inter rims are no problem,however they are for 7.50 size tyres,which are also hard to find new .....the only 20" tube size easy to find is 10.00......when I say find,I mean get a decent discount price on......Again ,I suggest you go to the wreckers and see what they have in a tubeless 5 stud rim in either 16.5,or 17.5./ or a 16" tube type with big enough section for 8.25x16,radials.............the other possibilty is custom wheels for the common as dirt 33" off road tyres,and run singles all round.