TheSamba.com :: View topic - what size and grade are the rear shock bolts

Mon Nov 16, 2015 11:26 pm

i need to find the right bolts for the rear shocks, a '67 IRS bug
can someone tell me the size and grade, for the upper and lower.
someone has used the wrong bolts, they have bent

and whoever did this, tapped a thread through the upper mount :roll:
an that's not a bolt, they used a threaded bar with a nut on each end

Mon Nov 16, 2015 11:59 pm

Check your paperwork, your car is not a 67.

The bolts are grade 10.9, size M12. Measure the length you need.

The bolts VW used had M12x1.5 thread, but any hardware store you go to will supply you with M12x2 thread.

Tue Nov 17, 2015 7:06 am

Bruce wrote: any hardware store you go to will supply you

Bruce is in Canada. Ace Hardware typically has way more metric stuff than HD or Lowes.

Agree, not 1967 model year, photo shows IRS drive shaft.

Tue Nov 17, 2015 10:06 am

They're 17m wrench size. Go to a Mercedes scrapper and get some 17s from a frame that are the right length, or long ones and cut them. They're good quality.

Tue Nov 17, 2015 11:39 am

Here you go.. Original VW for $4 plus shipping. Hard to beat.

http://www.thesamba.com/vw/classifieds/detail.php?id=854970

A simple search of the classifieds showed several results.

Tue Nov 17, 2015 4:12 pm

i'm just going by what the cars owner told me on it's age.
i know m12, i'd have thought they should be 10.9 or better

Bruce wrote: Check your paperwork, your car is not a 67.

The bolts are grade 10.9, size M12. Measure the length you need.

The bolts VW used had M12x1.5 thread, but any hardware store you go to will supply you with M12x2 thread.

Tue Nov 17, 2015 4:14 pm

does anyone know the LENGTH of these bolts
my time going to a junk yard bolt searching is not cost effective for my customer.

Tue Nov 17, 2015 8:05 pm

If you prefer new to used, here you go.
http://www.wolfsburgwest.com/cart/DetailsList.cfm?ID=111513000B

Tue Nov 17, 2015 8:57 pm

Yes, they are a 12MM X 1.5 pitch bolt, nut and washer combo. available at most all well stocked hardware stores. Some stores with a limited selection you might have to upgrade to 10.9 hardened Allen head bolts to get the desired pitch/length/shoulder combination you need.

Either way they are all going to be rounded off to the nearest 5mm.
I'd say the sample in your picture looks to be close enough to get a good overall length from, so why not just measure it as a reference :?: :idea: :wink:

Sat Nov 28, 2015 8:43 am

i got some yesterday
will measure them and add it to this thread, just in case someone else needs to know in the future

Sat Nov 28, 2015 9:53 am

Bruce wrote: Check your paperwork, your car is not a 67.

Is your 67 modified to accept an IRS? The IRS was not introduced until 68 on the Auto-stick and replaced the swingaxle completely in 69

Sat Nov 28, 2015 8:14 pm

Mr. Mike wrote: Bruce wrote: Check your paperwork, your car is not a 67.
Is your 67 modified to accept an IRS?
His chassis is 68 or later. It is not a 67 chassis that's been modified.