bolt sizes?

[robbie95]

So I lost a bolt.. I was changing the thermostat on my 91 2.5, lost the bottom bolt to the thermostat housing.. any ideas what size/kind it is?

[HOrnbrod]

Water pump bolts - grade 8:

 

3 @ 5/16-18x1-1/8"

1 @ 5/16-18x1-3/4"

 

This is for a 4.0 - @$$ume it's the same for a 2.5?

[robbie95]

13 hours ago, HOrnbrod said:

Water pump bolts - grade 8:

 

3 @ 5/16-18x1-1/8"

1 @ 5/16-18x1-3/4"

 

This is for a 4.0 - @$$ume it's the same for a 2.5?

I think its different, I'm talking about the thermostat housing, it holds the thermostat and coolant temp sensor. Was looking around and a 5/16-18 3/4" seems to be the fit. Thank you though!