2003 Dodge Ram truck wont start

Thanks I will have to try this tonight and let you know
for I am at work at the moment.

(should I just stop at autoparts on way home and buy plugs and wires, cap and rotar if truck has them. )

I will check wires for spark like you said and then spray starting fluid in throtle body. I also own a fuel pressure tester so I will try that also,

I do not have a digital ohm tester, but I can borrow one from work, what will I be checking with that?

Ok
I went home and tried to start truck, it turnd over many times but woldnt fireso batery and starter good

then I hooked up fuel pressure gage to fuel rail
turned key- pressure was 45psi

tried to start----engine turned over but didnt fire

ok must be spark issue

looked in chiltons manual (just purshased) under diagosis, engine turn over no start

it said check battery, which I know is good
then said nutral saftey switch

so I got back in truck put foot on brake
shifted trans from part to 1st then back to park
turned key and truck started

so I am happy it was that simple

but on older cars that I had if nutral saftey switch
was bad the engine wont turn over

so did I really find the problem?

I guess wait to see if it repeats or is their somthing I should be doing checking, since all I did was move shift lever up and down

Sunday my son drove truck in snow
rear wheels spun in snow
truck wanted to stall
he pulled over to try to stop from stalling
heard a load wine and the it stopped
engine whent back to normal
after stoping he found out the transmission lost reverse gear
we took it to dealer where we purchased it two weeks ago and they inspected it
revers gear gone and other clutch disc gone
they are doing a total rebuild of trans under the 3k 3 month warenty, thankfully he was only 1200 miles into the 3k 3 month

just wanted you to know wht the initial symtoms where pointing to, a bad trasmission

No he was not trying to free truck
he was just pulling away from stop light
he did complain before this happend that it didnt seem to want to downshift when passing and somtimes in accelerating would up shift or go thru gears properly. That is why I was thinking all the problems where transmision related
and possibly the transmission position sensor was readding the it was in the wrong gear and thats why engine would roll over and no spark

but yes I will hve them check the cam or crank shaft sensor while truck is in shop

thanks