bolt pattern???

anyone know what bolt pat. the b2200 is are they 6x135 or 6x139.7 please let me know if you know

6x139.7

also need to know the center bore??

thank you

center bore is 4in if i remember right

B-2000,2200,2300,2600 PICKUP 77-93 6X139.7 12mmX1.5 center bore = 108

http://adaptitusa.com/referencebook.htm

I use this quite often