Studs Or Bolts On Exhaust Manifold?

[snakedoc67]

Went to check the intake/exhaust manifold bolts on my MJ and I am missing the two lowermost outside ones on the exhaust manifold, listed as bolts 10 and 11 in the 1990 Service Manual page 11-10.  When i walked thru the parts yard all they had was 90+ XJs and they had a nut and stud arrangement. Was the earlier renix a bolt that attached here or is it a stud and nut arrangement as well, which in that case I am missing the studs as well. 

[ParadiseMJ]

My 88 and 90 both have studs & nuts on the ends. 

[yxmj]

Studs and nuts

 

You could use bolts.....it is just a guess but I think the stud nut configuration is just for ease of install...the intake has 2 dowel pins to line up with and the exhaust uses the end bolts.  :dunno:

[54bobby]

are you sure your not talking about the exhaust mani bolts which are prone to breaking off? it was a common problem, at least on the 2.5's. there was a torque change/recall fix for the outer manifold mounting bolts for mj's due to the bolt heads breaking off. I've had a few beers but I think I have this right.