As far as the shifter goes...try modern performance "booger bushings" 21.99 $ + shipping.You will get 4 of them ,2 to go at the tranny and 2 more at the shifter if it still needs work you will get a good look at everything while your in there.The steering rack needs to be replaced with a new one or a re-built one...a dodge repair manual will come in handy for this one...be careful there were 3 racks avaiable for most neons..after 96 or so there were only 2...as far as fuel sampling goes,the rail is an easy spot to get it, but dangerous ie hot engine stuff...so you might try somewhere else ??