I've been working on hard lines (brakes and fuel) and I should have an update on that soon. Also, the transmission is being built and should ship in the next couple of weeks. That will be a fun update, it's more Ford than GM, pretty crazy
In the meantime I worked on adjusting the PDC of the wheels from 5x120mm to 5x 4.75. The difference is 0.65mm or 0.325mm at each seat.
(The procedure was not my idea, there is a thread by user //<86TA>\\ on Third Gen detailing the process and I did it in a similar manner. It's really a brilliant shade-tree mechanic fix that opens up many more options for lightweight yet affordable wheels)
I used a Neway 60 degree valve seat cutter to recut the seat.
I turned down a wheel stud to fit the center bore of the cutter, pressed it back into a spare axle from my differential upgrade project.
Note: What appears to be marks or scrapes on the wheel are actually only a reflection.
Cutting down the seat about 2.5mm did the trick.
The next pic may be a little hard to see, but the bottom lug nut was from a shallower cut and has marks on one side because the seat wasn't cut down enough. The top lug nut seated evenly all the way around when torqued to 100 ft-lbs (that's all the torque I could get with the axle and wheel mounted in the vice).
