the other day i got a 87 blazer runs good for 200 bucks. but it wont pass va inspection. but the dash lights dont work and the other day i was tinkerin around with it but when i went to pull the needle off the speed ometer the little metal shaft that it sits on broke off in the needle. and i never could figure ouyt how to disconect the back of the speedo. and since now im gonna have to buy a new speedo, im gonna need to know how to put her in.