I have a 1999 Cherokee Limited Automatic, 4x4, Eaton Detroit Truetrac Differential, 12 hole injectors and 62mm TB, Skid plates, Summit Racing High-Output Ignition Coil Ignition Coil 46,000 V, BOSCH Fine Wire Double Iridium Spark Plugs, NGK Resistor Spark Plug Wire Sets and Summit Racing Distributor Cap and Rotor Kit, Header and 2 1/2" exhaust with a full flow Cat.
Running Full synthetic 10W-30 diesel engine oil.

So thinking of putting in Harland Sharp roller rockers. As I hear they do rub just stock, was thinking a 1/4" Valve cover spacer should raise it high enough to clear. Have seen 1/2" valve cover spacers have yet to look for 1/4" ones

anyone have thoughts on it??


thanks

 

The ones for the 4.0 were redesigned somewhat recently to have a slightly lower profile. I just put a set in a few months ago and have no clearance issues. Mine are on the left; you can see where they moved the apex of the rocker from the left side of the pin to the center of it. The tips are also more rounded now instead of straight.

 

Good to know will be ordering a set right quick

Thank You so Much