Need help figuring out a problem with the trans in my 95 Dodge Ram, its a 500 or 518 or whatever the overdrive 727 style trans is, problem is it just quit like its in neutral, had to come home on a rollback, unloaded the truck left it sit for a few hours backed down my driveway put it in drive hammered it with the brakes on & it held fine, did this a few times on held it for a long time it would not slip or anything, where do I start looking for the problem, relief valve ? originally I thought that it was low on trans fluid because the dipstick tube oring leaks but I put some in it when it would not drive & it still acted the same.
Any thoughts