Recalibrating vn speedo

[wagond]

Hi people!seeing as im about to change my diff ratio a bit more drastically this time(4.11)i thought it might be time to fit the speedo corrector ive had on my wall for a couple years now!so the instructions say find the vss wire,blue and white from what i have bn able to suss out from my haynes book.cut and attach wires in the appropriate sequence on the corrector.there is a buffered passthrough(whatever that means?!)wire also from the corrector,am i right in thinking it goes to a brown and white wire(pin a10 on the delco)?anybody have any good ideas,previous experience with these?

[HQ355]

I havnt seen that one or used it but from what I've seen there's a few dodgy ones that just don't seem to work, if you find that it's not working I can reccomend festy's one or I think Dylan used a dakota digital one (correct me if I'm wrong please) whatever you do the jaycar ones are useless

[Dylan]

The Dakota one I fitted to a mates is fantastic. But in the older style box's like the VN's I've fitted a different drive gear in the past. Cheapest and easiest way of all.

[antus]

See how to recallibrate a vn speedo here http://pcmhacking.net/forums/viewtopic.php?f=7&t=1396