Has anyone used an aftermarket speedometer in their car? I want to get some new gauges from like Autometer or VDO, but I want them all to match. I don't know if any of the mechanical ones will work, and I don't know if you can get any of the electonic ones to work either. Anyone done this before?

I have a 5" Sportcomp speedo and the stock speedometer cable screws right on.
I believe the .104" sq end on the cable is a standard size.
It will read wrong, though.
Good luck.

I know a mate of mine fitted a aftermarket tacho in his ute
Ade

I've got all the origional Smiths instruments in my Sprite hooked up my A12 - and gauges don't come much more mechanical than that. It all works fine and has done for 5 odd years now. A bit of work was involved but nothing too hard at all... I'd imagine replacing your instruments with a VDO set would be pretty easy.

Whatever you do tell us how it all works out.

VDO speedo in a coupe dash with a 10000rpm tach as well

VDO have some really nice ones but you need to find some one who has a good range like a speedo service that recalibate them. Its much easyer if the guy selling them actually knows how to fit them

i have a 5 piece AUTOMETER custom dash.
consists of: 5" MPH (mechanical) 5" tacho with shift light (electric) 2,3/8" oil pressure and water temp (mechanical) and smaller fuel ( had to buy after market sender and customise to fit though)
COST: $1500 - $2000....stop counting these days.

i have just bought a set of autometer gauges got them for about 1/4 of the price got them strait out of america off the net it cost me $600 for the whle set including shipping

do they make speedos in kmh's cause I want one

yes autometer & VDO both do