The easiest thing is to replace the broken fork!

To remove ignition lock cylinder requires drilling a hole in the lock body so you can depress the detent spring.

If you ask me, it's much simpler to rekey the lock cylinder in the new handles to match the ignition lock cylinder. Before you do that, you should look up the lock code from the broken locks and have a fresh key cut from code. That way, you are matching the new locks to an unworn key. 

You will find the attached pic on my 'Van O Rama' FB mobile upload pics.  Other rekey pics in my Picasa page. Sorry I'm on my mobile and don't have links handy.

BenT

sent from my electronic leash

> On Apr 5, 2014, at 8:23 AM, Tom Buese <tantonbz@GMAIL.COM> wrote:
>
> I am planning to replace the front door handle on my 84 westy w/ another
> one that I just received in the mail.  Which is easier to do-remove the
> existing key tumbler from both old & new handles, & exchange them so my
> ignition key works in new handle, or have new tumbler re keyed to match my
> ignition key?
> I am many miles from a locksmith, so would like to do this at home if
> possible, but I don't want to bugger up my handles experimenting to see if
> I can remove the tumbler, & Bentley 57 does not address this issue.
>
> TIA,
>
> Mr. BZ-front door now opens but door handle fork got broken off in the
> process, thus the need for new handle!
>
> --
> Tom Buese