3/4= 8 lug 1/2= 6 lug.....
there should be a vin on the frame near the steering box...... can be hard to find though
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My Truck pictures
www.xframeimpala.com
68 4x4 short fleetside 327 CH465 edelbrock intake and carb MSD distributor its the "SHAGROLET"
56 big window short stepside 235 dual 1 brls
64ImpalaSS 327
70 C10 LWB fleetside custom/10 350/TH350
IM me on aol SN= SHAGROLET