Smog Pump bracket bolt pitch (1 Viewer)

[Sandhiller]

1985 model 60, I modified an old smog pump bracket to mount a saginaw PS pump, all looks good, alignment is perfect but cannot figure out the pitch of the 10 mm bolts that bolt the bracket to the engine in the lower DS of the engine, between the motor mount and the base of the block. The front one needs to be about 60mm in length and the back one 30, don't want to buy 3 of each to find out the pitch. Any info out there.? Nothing in FAQ or resources that I can find. Thanks in advance...

 

[OSS]

If it's fine pitch, it's 1.5. If it's course, it's 1.25.

 

[Sandhiller]

Can't get a gauge in it to check...likely 1.5...I'll try that and thanks

 

[FJ40Jim]

The two bolts that go down through the lower smog bracket, into the oil pan rail are the only two M10x1.5 bolts on an 85-later 2F/3F. every other M10 bolt is fine thread, M10x1.25.

 

[OSS]

Oops I got it backwards. Duh. The lower the thread pitch, the finer the threads.