The new PN for for the rear main crankshaft seal only is 89060436
The new PN for for the rear main crankshaft seal only is 89060436
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Oil bypass / blockoff plate that was previously Fbody PN 12553210 is now PN 12577903. The seal to fit the plate is PN 12553210.FWIW, this new replacement plate does not have the provisions for tapping for a fitting. The boss that stuck out the side is no longer there.
Last edited by RedHeartbeat; 11-20-2008 at 08:25 AM.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Part number for throttle cable bracket when using the truck intake is
pn 89017380. comes with screws but if you are converting from dbw you may need to make yourself some inserts for the bolts. I used a fine thread 7/16 bolt and drilled and tapped for 6mm fine thread(original size), carefully drilled and tapped the bosses in the intake and lightly siliconed and screwed inserts in place. worked like a charm.