Spindle compatibility - large front brakes - ERA

[66gtk]

Originally Posted by strictlypersonl

I'll have to check your part numbers on Monday.

We always made our own hats for the conversion. If you've got the 6-pin system, you'll need them. For Bolt-on wheels, I've got a new method that uses all new off-the-shelf parts, and it's relatively cheap.

Thank you. Much appreciated! Yes, I have the 6 PIN system. I'm not sure if the HATs currently on the car are from the original Sierra installation my car came with from ERA or the PBR that is currently on there. I was thinking/hoping they would work with the Wilwoods I specified above?

Also, if it helps nail things down better, these particular calipers are available in either a 1.25, 1.38, 1.62 or 1.75 Bore size. If they fit, which would work best with the master cylinders I have stock - installed on #488?

All this information will help me get my car closer to putting 15s back on there without having it be cost prohibitive. Again, I really appreciate the technical assistance!