ring-pinion setup

Terry, you are right. I better check my garage. I am just building my 340 and have almost everything to the complete drive train switch. She is now running every weekend with a 43K original /6.That engine and auto and rear are perfect and will make someone a good replacement for a /6 purist when I get it out. I think 72 was the last year for the 8 3/4. I think the 1973 340 duster came with a 8 1/4 rear. does anyone know for sure? It was the last year for the 340. I will correct my garage. Thanks walt. :coffee2: