This handy drilling guide is used to mark the hole centers when converting the wheel stub bolt pattern on a Chevy Dana 60 front axle wheel hubs from 8 bolt on 6.5 inch to 8 bolt on 170mm bolt circle diameter.

Simply place the drilling guide over the stock wheel studs, then use the small holes and a punch to mark the exact centers of the new 8 bolt on 170mm b.c.d. Drill your wheel hubs to your new desired wheel stud size and press into the wheel hub.

No guessing! Ensure your new wheel stud pattern is concentric to the wheel hub.
Constructed from 1/8 inch Steel and precision laser cut. Weight = 0.5 lbs