935 ERP springarm bolts

JohnJL · 08-07-2015, 06:11 PM

I recently received my 935 springarms and went to install them only to find this funky hardware. Does anyone know what this bolthead pattern is? and perhaps why erp would possibly choose to use a unique size , just to be fancy and difficult?

dos531 · dos531's Garage

More than 12 points?

JohnJL · 08-07-2015, 06:52 PM

12 points.

JohnJL · 08-07-2015, 07:15 PM

Well I should probably delete this thread for looking dumb, but I rooted around my odd sockets and found they are 10mm 12 point and 3/4 inch 12 point which is probably also 17mm 12 pt.

dos531 · dos531's Garage

Haha it happens to the best of us

Mahler9th · 08-07-2015, 07:27 PM

I just installed these parts.

I think you answered your own question, except that the larger bolt head cannot be 17 mm and 3/4 inch simultaneously. I used a 19 mm socket on mine.

It may be wise to check the spring plate mounting area for cracks near the bases of the bosses. I had some and had to make some reinforcement plates to have welded in.

It may also be wise to be careful with the threads on the machined parts.

And this may help:

JohnJL · 08-07-2015, 07:46 PM

Quote:

Originally Posted by Mahler9th

I just installed these parts.

I think you answered your own question, except that the larger bolt head cannot be 17 mm and 3/4 inch simultaneously. I used a 19 mm socket on mine.

It may be wise to check the spring plate mounting area for cracks near the bases of the bosses. I had some and had to make some reinforcement plates to have welded in.

It may also be wise to be careful with the threads on the machined parts.

And this may help:

Yep 19mm~3/4". I only have it in inches, almost all my sockets are 6 pt. Though in my search I found a full set of Repco 12pt metric sockets, extensions and adapters. So happy day after all!