Originally Posted by Rustbucket Ranger
96 black, 4door SS :
I wonder what the difference is between the two P/N's ? The pin arrangements look like what I have. Maybe I will buy one of each - they are cheap enough. & I better get a cork to stopper the hole in the block while I am fumbling around. Or maybe it is finally time to switch out the old coolant......
There is no difference in the numbers. One is the customary 8-digit GM oem code, the other is the manufacturer's part no. The stickie shows both numbers together as ready reference.
You don't need a cork. Just don't fumble around. Confidence, man.
If coolant is >4-6 years old then maybe change it.. Search for a few of the changeout and flush threads. There's a good orderly method, -- and far too many haphazard ineffective ways too.
\'96SS SOB: SSRI, Herter Tune, Tri-Y II, , 3000 Edge, F/HO bars, METCO extendeds with CV MMC, Bilsteins, currently Vredestein Ultrac Sessanta (315/35 rear). Finally, wait for it... LT-4 knock module!
\'96FWB BUW-Butt Ugly White: PCMPerformance tune, HDFA w/ swissed filter, 1/2 SLP s.s. catback with H- and Flow Super 50s, oem opti rebuilt 3 times, SS Bars, METCO LCA, Airlift 1000, Monroe SS, PowerTrax No-Slip, CTS wheels with +1 rubber. Finally, yes again... LT-4 knock module!