Hi

Going to fit sierra uprights , and done a search here for adapters eg Post
but then found these on ebay with off set
EBay
What is the difference? Should I machine these myself?

Thanks

Hall

Having an offset allows some castor/camber adjustment. MK supplied items (and most other, I think) are offset, and usually set with the hole nearest the front.

These things usually aren't particularly cheap, but it's not the sort of thing I'd trust myself to machine (if it goes wrong at speed, it's a bad news day!)

The offset is to bring the center of the hub in line with the joints. If the hub center is out of line Castor don't work properly. Should not be used to adjust anything but upright geometry.
Link to other recent thread on same subject.

[Edited on 06-9-4 by leto]