I was involved in a accident recently and I started to rebuild my ‘99 tahoe. Everything on the dash worked fine after the accident, mostly body stuff got dinged up(fender, hood radiator support, bumper, etc.). Apart from the vacuum booster to which I already replaced. I do need to bleed the ABS system, any tips on how to do that. But anyways, my Speedometer was working fine after the accident and all, it was until I started working on the truck and replacing parts to which I also disconnected the battery and now that I’m almost done I connected the battery and the speedometer is stuck @100mph. I checked my grounds disconnected the battery again for a couple of minutes but everything else looks fine and it still stays stuck @100mpg Any idea what might be the root of the issue?