I would say no only cuz the older tanks are made out of thicker gauge metal.When you use a "Uni spotter" as they are known in general they tack weld a stud on to the tank and when you pull it using a slide hammer it just rips off,not all the time but on the most part that depends on the dent. If the dent is a slight gradual one you might have some luck but if it's a sharp creased or deep dent the metal is stretched it will not pull very well if at all without either A: ripping the stud off B:ripping the stud off and then realizing it wasn't the stud but you have just ripped a hole in your tank

this is where the welder comes in

. C: you pull the dent but because the metal is stretched you now have a high spot on your tank

this is where the hammer comes in to play and try to tap it back down a little and this is where you end up with a DENT!!! or if you have the know how heat shrink the high spot

.
I know this cuz I've bin there done that

I've welded washers on with some luck pulling a larger area to pull with but also ripped a BIG hole in tanks doing this(good thing I have a welder)
Not all tanks are the same guage metal some thinner tinned will pull easier but usually stretch easier also.Unless you are losing gallons of fuel because af a dent or you have the patience of Russ with his tweezer hammer dent tapper thingys mix up some filler"BONDO" and be proud you sculped yourself a beutiful work of art.