...also got the flashing trouble light: pending fault code is P1870Yesterday I was driving it and am now finding it to slip in pretty much all conditions. I noticed a couple slips from start and also from 1-2 and 3-4 in addition to the 2-3 which has also gotten worse. Also, downshifting from 3-2 I'm experiencing hesitations and "jerking." Any ideas? I'm wondering if I should be checking electrical connections but have the feeling it may be time for a rebuilt or remanufactured transmission. The truck is in really good shape (other than these transmission problems) and I'd like to keep it for a long time so I see it as worth the investment if that's what it comes down to.