bolt pattern on 96 express

Anyone know the OEM bolt pattern and back spacing on a 96 Express - 1500 van. Its 5 lug but dont know if its 5x5 or 5x4.75 spacing.

thanks

It will be 5" bolt center, or 5 on 5.

@ the risk of hijacking this thread with no offense intended. what about a 2001 8 lug. is it 170mm or is it 6 1/2"?