Pin drive bolts splitting Help Please

[Bob Lacey]

Bob Vintage Wheels here.
There seems to be some confusion as to adapter,spinners,drive pin specifications from different vendors.
It is important that the wheels,adapters and spinners are compatible for safety reasons

I have not read all of the posts on this thread so I will apologize in advance for any duplications.
As I cannot speak for other manufacturers of pin drive set ups I will confirm the specification of current (since fall 2004) Vintage wheels products.

1)drive pins
material forged steel, zinc plated
overall length 22.0mm 0.866 in
outside diameter 19.4mm 0.763 in
taper angle 60 degrees
12 mm Allen socket required for torquing ,medium strength thread lock to be used on final assembly
Torque settings
1/2 x 20 thread 85 ft lb
12 x1.5mm and 7/16 x 20 threads 80 ft lb
(the very first vintage pins had a 90 degree taper angle which was changed in 2004 together with adapters to be compatible with other manufacturers.)
Drive pins with an internal hex in some cases require the use of shorter wheel studs , this does ensure that the wheel stud does protrude through the pin and bottom out in the wheel pin hole which is an important safety factor , drive pins with an external hex can use longer studs (some stock studs will still be too long and will bottom out in the wheel pin holes)
In early 2005 a drive pin vendor supplied us and others with a batch of drive pins (with the 60 degree taper )which were over hardened and we subsequently contacted customers who had been supplied with these pins and exchanged them for the forged ones.
If there are any customers for some reason still have any problems with drive pins please contact us for a replacement set

2)Adapters -
material forged steel ,zinc plated
The standard vintage adapter has same external dimensions as other pin drive set ups for interchangeability.
Vintage adapters are both hub centric and stud centric , either is fine - the advantage of both stud and hub is that if a spindle hub has been re drilled to a different bolt pattern the Vintage adapter confirms the accuracy of the re drill , also the loading is shared by the studs and the hub center cone.
Stock adapter internal bore is 2.75 inches + clearance to index on pre 94 Ford hub cones then are machined for other applications according to specs provided by customer such as SN95 ,Jag ,chevy.
Hub rings are available for hub cones of less than 2.75 inches
We also manufacture custom length adapters for non standard application ,
We now upgrade all of our adapters to "anti theft" which also a ensures a spinner cannot come off if not tightened correctly for that extra 'peace of mind'

3)Spinners
material - forged aluminum polished to show standard
face angle 60 degrees
8 threads per inch
one ear drilled for safety wire

4)Wheels - manufactured in permanent steel dies with ISO certification.
Compatability
If you already have adapters or an existing pin drive set up and are looking for extra wheels.
Vintage HA15 HA17 and FA18 will in most cases fit directly on to non vintage adapters eg Trigo,SPF,CAV - however drive pins will have to be checked for OD and length. (This is because Vintage have some backspacing options eg HA15 inch has backspacing of 3.6 or 4.0 inches to fine tune the wheel position in relation to the fenders)
Vintage BR15 and BR17 will also usually work on non Vintage adapters except for some backspacing options which require longer or shorter adapters - available exclusively from Vintage.
We can also drill wheels to suit other pin diameters.

As a general rule if mixing components from different vendors all components must be checked by a
competent mechanic to ensure compatability.
You can also call us for technical support on 1 888 720 0459 and for full info on pin drive installation see the 'fitment' section on our web site www.vintagewheelsus.com

Thank you for reading this ,sorry it was so long -the subject could not be addressed in a few lines!
I hope this has clarified some of the confusion out there
Bob Lacey