My truck is a 1987 FJ60, and as some of you know, I am in the middle of changing the intake/exhaust manifolds. I decided to change them because the PO's mechanic told him that the intake manifold was cracked, which explained the engine's inability to idle. I took them off a couple of days ago only to realize that neither the intake, exhaust nor the head were cracked. But in better news, in removing the supposedly broken manifolds, I found out that one of the studs that holds the exhaust gas return pipe was missing. It is located on the bottom of the exhaust manifold on the back side of the engine. So I will be replacing the manifolds after all. I would have everything back together by now, but I need to find a gasket for that pipe. Does anyone know where I can find it in short time? As for other potential problems, I am not sure why the truck would not idle correctly. I'm guessing that it could have been a bad gasket, I hope, but it could have been something else. The PO said that the radiator had been clogged twice, causing the truck to overheat on a trip to Tennesse where they continued to drive it, but with the heaters on. This also provided cause to replace the radiator twice. What else could this have caused?