i dont know 8.8 diff, flange bolts

[bigblok80]

i come up with #12 metric,1.75 pitch
pinion flange.
tried one, wont go far...
?? anybody...

[wraithracing]

You are correct the 12mm with 1.75 thread pitch and a 12 point 12mm head is the standard OEM bolt for the 8.8 flange.

The dry thread lock, can make the bolts difficult to thread in by hand. Not sure if you are using a regular bolt or an OEM. Possible maybe someone cross threaded a hole in the flange?????

Of course like everything these days they are sold out, but would normally be a good replacement set for the OEM bolts. https://www.dennysdriveshaft.com/p35...rd_8.8_in.html

[bigblok80]

ok ill try again.
why 8 holes?...all the same ??

[Jack Hidley]

Two different bolt circle diameters. With your driveshaft, you can only use one of them.

[bigblok80]

ok, makes sense...gotta find bolts,but have lots of time