Maybe not Pro Touring but I need help.

[Murf]

Hi all, Is there a caliper that would be a bolt in replacement for the funky rear calipers on an 89 W-body? you know the ones with the E-brake in the caliper. I have never been able to keep them working long. Is there any web page or site that would have caliper dimensions and such? I would like to replace them with a non E-brake caliper. Thanks, Murf

[Texas Hotrod]

In the mid/late 80s Corvette went from e-brake calipers to e-brake hubs. That's something you might check into.
Wilwood makes an e-brake caliper as well as non-e's and e-brake only.

You have a 10 bolt? Check into the early Chevy Trail Blazer rear units. Nice big aluminum calipers and e-brake hubs. Might be a cheaper swap that buying custom calipers.