camarowitness

Me and my brother are doing a transmission swap on my 1999 z28..
Everything's going fairly smooth at the halfway point.. I was going over the hardware and can't figure out what these bolts go to. They're 13 mm- 1¼ inch total length. 10.9 grade
Any ideas? Thanks in advance

ICRAZY6

iTrader: (68)

Bell housing of trans to engine bolts are what they look like. But you only have 4? Normally have 8.

bbond105

They look like the 4 tunnel brace bolts. When you say they are 13mm bolts, do you mean that a 13mm wrench fits the head of the bolt?

camarowitness

Yeah i have all the bell housing bolts
Yes i meant 13 mm head

98CayenneT/A

There is a wavey piece of steel that runs across the tunnel, tunnel brace, that is about a foot and a half back from the transmission cross member. Just a guess but possibly the bolts to that. I don't have mine in anymore so I can't check the size

98CayenneT/A

Sorry, didn't see this this before my post but this is my vote also

FirstYrLS1Z

iTrader: (4)

those bolts match the parts layout catalog for the bolts for the floor tunnel reinforcement bracket M8x1.25x30(1.2") grade 9.8.