hey guys, can anyone tell me the size of the k frame bolts that bolt into the main frame of the car? i did an engine swap in my car and had it all apart and broke the heads off the bolts when taking them out. got them out and now i cant find the damn things. im pretty sure its a 1/2" by 4" long but i wanted to verify before going and buying new ones. also need to know the thread pitch.

Not sure on the pitch , but I might have a set of bolts - u can have for the cost of shipping

Power Steering Rack Bolts: M12X1.75mmX74mm-54mmTHD

Bolt # 13: Not Listed. GM P/N 22600725

Bolt #29: Not Listed. GM P/N 22583411

Bolt #34: Hex flanged head, M10x1.5mmx25mm, 22.30mm outside diameter head, header point, Grade 10.9

Bolt #37: M12x1.75mmx74mm, 54mmTHD

Bolt #38: M12X1.75mmX92mm

Bolt #40: Not Listed. GM P/N: 22652798

Bolt #51: Hex flanged head, m10x1.5mmx30mm, 22mm outside diameter, header point, Grade 10.9


I would bet money that it is a M12 x 1.75mm x X bolt. Grade 10.9 Hex Flanged Head.

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PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO

I actually believe the subframe bolts are 14mm, but I could be wrong.

Well the info I pulled was direct from GM, but I didn't find the actual rear two. They are not listed on any schematic I have access to.

If they are 14mm, GM normally uses 2.0mm thread for all 14mm bolts.





Edited 1 time(s). Last edited Thursday, April 03, 2014 10:15 AM

PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO

-MD- Enforcer wrote:Well the info I pulled was direct from GM, but I didn't find the actual rear two. They are not listed on any schematic I have access to.

If they are 14mm, GM normally uses 2.0mm thread for all 14mm bolts.

+1. theres tons of bolts and nuts at ace hardware. they have like everything.