yes that makes more sense that it's a locator pin. simply because it's on the horizontal underside of the radiator. on my other rad the drain plug is actually on the vert plastic end cap facing the motor. as far as that grommet yes it is shot, hopefully those are replaceable purchaseable. I think I only have the cursed s snake trans cooler line and no oil cooler ports.

 

The drain on my old OEM radiator is on the passenger side at the bottom. The grommets are available for purchase so that should keep it from happening again (hopefully). I'd be surprised if you did not have a both the oil cooler and transmission cooling lines because if you have an automatic transmission you will have the trans lines and I didn't think any of the 2nd gens came without the oil cooler lines too. It is easy enough to check for yourself by counting the number of steel tubes going into each end-cap of the radiator. If you 4 total, you have both. If you only have one pair, then you can trace them to where they go. But if you have an automatic transmission, you will have at least those two.

Good Luck!

 

October 98 sticker tells me this was a worthwhile replacement. 425 out the door for rad, cap, and T stat, and yes it has oil cooler and trans cooler. decided against upgrades for 0E Econo. Now it holds pressure long enough to know that the water pump is leaking grr, that's at least two weeks out on the paychecks gig.

not enough J-B Weld in the universe...