The goose neck on my radiator broke today on my 92 300E.

Luckily there was enough of it left to clamp the hose and drive home. The radiator guy is giving me $10 off so it will cost $177 with a lifetime warranty. Importec has them for $167, but I need it faster.

My uncle is a GM mechanic so he's gonna install it. Any install tips to be aware of?