AChotrod

iTrader: (17)

Seemed to have misplaced mine while putting in the th350. Anyone knw the size of the trans crossmember bolts?
Thanks in advance.

SmokedOutZ28

iTrader: (35)

The factory bolts for my 97 were M10x1.5x30 My local dealer were able to get them for me.

AChotrod

iTrader: (17)

Hmm Interesting I did find one thread that said they were M10x1.5X35. not 30. Did the dealer have them in stock or you had to order them?

SmokedOutZ28

iTrader: (35)

They ordered them in from a Gm restoration company in WI. It usually comes in a day or two if I make the cutoff time. Thats where I usually get my Camaro oem parts when I need them

AChotrod

iTrader: (17)

**** I just called the dealer and they told me they were 12x1.75x45. I said are you sure, and he said yep. So now I got 3 different sizes from 3 different people.

SmokedOutZ28

iTrader: (35)

Lol Damn that sucks! I got my # from the invoice when I ordered them last year.

Update: I just called my parts guy and he asured me that the size posted was correct. There is no difference between auto or manual trannys and I used your car info to triple verify lol

AChotrod

iTrader: (17)

Im sure your correct. I just got back from the parts store and I dont think either of the numbers I posted were right so I grabbed the M10x1.5x30s. They didnt even have the other sizes listed. Thanks for the help!

shbox

Depends on which bolts you mean...


Transmission mount to transmission bolt M10 x 1.5 x 30

Transmission crossmember to chassis bolt M10 x 1.5 x 35

AChotrod

iTrader: (17)

Damnit I ment the crossmember to chassis. Now the 30s are in there. Seemed to fit??????????

RamAir95TA

iTrader: (2)

The last number is the length. 30mm vs 35mm underhead length. The slightly shorter bolts will be fine (they protrude past the threaded hole anyway).

shbox

That would be about 3/16" shorter. Probably, no biggie as Joe said.

AChotrod

iTrader: (17)

Sweet I was sweating for a minute there. Thanks guys!