S10 shoes and gbody shoes are the same. They all use a standard gm 9.5" drum. Yes you use 2 of the rear shoes which are a 1/2 longer. Just doing the wheel cylinders alone is a huge difference in holding power. Notice I say holding power. Factory gbody wheel cylinders are way more than capable of locking the brakes up @ most any speeds. This was is intended for holding power for launching the car. Turbo guys started doing it so they could build more boost on the line and still hold the car. That's why they use the 2 long shoes for more friction area. The front and rear shoe ( read short and long) are of the same dimensions. But there is about 1/2-3/4" extra friction material facing on the long shoe. The reason Brian weaver (gbodyparts.com) is so expensive is because it comes with braided stainless brake hoses, 2 front and 1 rear. The hoses don't expand and flex like standard rubber so it keyd you get more pressure to the wheels holding the car even better, plus they look cool, and to top it off they are dry rotted 20 some year old lines. The key thing to remember her is this mod isn't about stopping power. It's about holding power. Sure you get more stopping.power but do you need to lock the brakes up more than you can now?.
I'll get pics in the morning for reference of the long vs short shoe for you guys as I have a bunch sitting in the corner of my shop.
One thing to note is the wheel cylinders can be a little more difficult to bleed because the bleeder is up in the axle flange and not out like a standard g body bleeder. Easy enough, I bleed mine with the car in the air and the wheel off. Access over top the axle through the wheel well. ( please keep the drum on lol)
