My GTX needed a new starter so we took the old starter to "Sellers Starter and Alternator" here in Dallas. They told us that the old starter just fell apart and was trash so we bought a new one. The old one was an 8 tooth starter and the one they sold us is a 9 tooth. We of course were very confused but they assured us it would work and also told us that they don't even make the 8 tooth anymore so this was our only choice. we put the starter back in and of course it doesn't work...Is this something we did wrong or is it that its the wrong starter?? TIA