Review on Dorman 03133 M10-1.5 x 62mm Exhaust Stud Kit for Compatible Models by Kenny Sanchez

Worked great on my 2001 Chevy Suburban 5.3L LS1. These bolts are for the flanged end of the exhaust manifold towards the catalytic converter and O2 sensors. I rethreaded the exhaust manifold flange as rust in the threaded hole is making this new bolt difficult to install. Do not force this screw in, if it goes in easily, you may tear off this screw. At Harbor Freight Tools you can buy a thread cutter cheaply. After that it was easy to screw in a new screw. To remove an old bolt if it hasn't already come loose with the old nut, wet the bolt with a mixture of 50/50 gear oil and acetone for excellent penetrating action. Oil. Then use channel locks or another tool to remove this screw.