4.0L AX-15 pressure plate bolt specs

[DetroitTJ]

I need to buy new bolts to attach the pressure plate to the flywheel. I am not sure what the specs are for the bolts. When I search online I see Mr. Gasket 910 bolts which are 3/8"-16 x 1", and ARP part 150-2202 which is listed as M8 x 1.25.

Can someone clarify what I need please?

 

[Jerry Bransford]

Mopar's parts guide for your 1999 4.0 says .375-16x.84 which is a 3/8-16. The M8 size is for the 2.5L engine.

 

[DetroitTJ]

Thanks very much!

You might also know my other bolt question- what bolts do I need to attach the transmission mount to the AX-15 transmission?

 

[Jerry Bransford]

This might be easier since there are two different sizes of bolts there...

 

[Steve Rodgers]

How about the grade of the bolt? Wouldn’t want a grade five or lower where a grade eight belongs. Or are they a hardened bolt? Just wondering.

 

[Jerry Bransford]

A Grade 5 is more than enough there.