Your local Ace Hardware will have those bolts if you don't want to wait.

 

You're right. I went out and checked BOTH of my jeeps and you are correct. 1 bolt goes thru a thick part and the other is only thru a flange. I've been working on Chevy small block too long and my brain is still seeing 2 short bolts. Trust but verify! Damn! I went out in the pouring rain in just a T-shirt and am now cold and wet. The things you guys put me thru....just kidding.

 

Ha, I feel you Dave!

Odd thing (as I wait for all my bolts to come in next week). I have a 2 1/2" hex bolt laying around and tested that on the flange with a 1" bolt, both have threads that stick out the SAME distance from the flange: 5/8" of an inch. Which means if the top is speced at 2 1/4" then the top bolt threads into the engine 1/4" LESS than the bottom bolt.... I can't confirm the full length of my broken top bolt yet as it is still in the engine. Wondering if it should be 2 1/2" instead? ... Will have to wait until I take the broken bit out to confirm its length.

Raining here today and can't wrench on the Jeep. I work on the streets with no garage!

 

GOT THE SUCKER OUT!!!! 1/8" left-hand drill bit from saved the day! THANK YOU so much, everyone. So relieved! Was easier than I thought. I admit I was freaking out!

Waiting for my bolts now from Bolt Barn on Ebay.
and my Stant Superstant 195° thermostat
*** I CAN CONFIRM BOLTS SIZES ARE: upper: 5/16 - 18 x 2 1/14" and lower: 5/16" - 18 x 1"

Using a Fel-pro gasket.

 

 

I always have good luck with the left hand drill bits Glad you got it out always love it when a plan comes together!