i have a 88 toy with a strait axle in it with 42" TSL's. I keep blowing the brake piston seals on the calipers and the thing barly stop the truck as it is. Just wondering if someone could help with an upgrade tips!! Thanks alot!! <img src="/forums/images/graemlins/patriot.gif" alt="" /> <img src="/forums/images/graemlins/patriot.gif" alt="" /> <img src="/forums/images/graemlins/cheers.gif" alt="" /> <img src="/forums/images/graemlins/cheers.gif" alt="" /> <img src="/forums/images/graemlins/kewl.gif" alt="" />

42s. Yow.

You running the IFS calipers and Land Cruiser vented rotors? Which master cylinder/vacuum booster? Mo' info SVP.

Yea 42s. just got done putting in a chevy 350 with the SM465 granny 4spd tranny and NP208 into it and i need to upgrade the brakes. Im running 88 ifs calipers and the stock rotors and the stock master cylinder/vacuum booster from the 88 toy. <img src="/forums/images/graemlins/cheers.gif" alt="" /> <img src="/forums/images/graemlins/patriot.gif" alt="" />

Hmmm.

Using the stock ifs calipers on straight axle rotors would explain why you keep losing caliper seals. They are made for the thicker, vented disks. Upgrading to V6 calipers (bigger pistons, more fluid capacity), Land Cruiser rotors from 81-83 Toyota FJ40 or FJ60, Sky Mfg. spacers if you have IFS hubs or simple wheel spacers if you don't, and FZJ80 or some years' Taco/4Runner master cylinder (1" bore, moves more fluid/stroke), and a V6 or t100 vacuum booster will help. Erik Bibelheimer has quite a discussion on brakes and options, I forget the link but a search should reveal it.

Thanks alot for all the info. <img src="/forums/images/graemlins/cheers.gif" alt="" />