Reverse light switch

i need a reverse light switch for 18 spline transmission, best place get new one? also i thought i saw on here that you could replace it with a pipe plug, but don't remember the size. it's for a 70 challenger, but transmission is of unknown vintage.

They are all the same. Contact Wayne or Dan at Brewers Performance

http://www.brewersperformance.com/search...type=&scat=

thanks!