Dorman RAV4 5x114.3 Conversion Manufacturer Issue, We are going to break this case WIDE open Options

[Tigawoods]

This thread is now a product warning thread on the Dorman Wheel hubs for the RAV4.

I have found an issue with the Dorman 930- 419 RAV4 front wheel hubs used in the 5x100 to 5x114.3 conversion.

The studs that come in these Dorman hubs have a tapered shoulder with a knurl diameter that goes from 12.46-12.60mm
The OE replacement studs for a majority of Toyota vehicles is 14.20mm (Dormans listed studs for the RAV4 are 14.20)


Now in the case that you dont plan on having any issue with you hub this shouldnt be a problem for you and happy swapping, but...


********
If you somehow break a stud or need a replacement for any reason, the hub either needs to be replaced or re-bored
If you want extended studs from companies like ARP you will either need to re-bore the holes or (I am getting in studs tomorrow that I hope will fit and will update this)
I havent looked around for a OE size stud that might be able to match the 12.6 knurl diameter maybe for some other car, that might take some time, most OE sizes seem to be above 13mm or so
********

I called Dorman to get more info and they are well aware of this issue and dont know why its being manufactured that way.


Here is a pic of IS300 ARP Wheel Studs (14.17mm Knurl Diamter) Next to the Dorman Studs that came out of the wheel hub
These ARP studs WOULD have fit if the hub were the spec it should be.


This post has been edited by Tigawoods: May 16, 2016 - 12:58 PM

[Tigawoods]

yeah if 14.20-22 is already the proper spec for the stud bores, I am leaning towards the 14.17 studs, the 14.35 might just be too much on top of a spec that should already be "max" tolerance for the stud bore.
I dont really feel like forcing them through and concurrently widening the stud bore, that might cause issues with part swaps farther down the line.

the 14.17mm are $35 for 5
the 14.35mm are $61 for 5

the larger ones DO have a favorable spec that the smaller ones dont, it the knurl length.
the OE knurl length is 8.001mm (edit the shoulder height is 8mm, the knurl length looks to be around 6mm)
14.35mm studs have a knurl length of 8.25mm
14.17 have a 6.9mm length


update:
Called ARP and not really giving me any more details they said that the smaller knurl studs would be the best choice.

The larger knurl studs from ARP are studs for a 86-89 Celica GTS, RockAuto lists the same 14.22mm studs for the 86-89 Celica GTS as the 14.22mm studs that are listed as working for the 97 RAV4.

I bought the smaller ARPs and will try them out

This post has been edited by Tigawoods: May 10, 2016 - 1:37 PM