Re: Slow to engage Drive after Reversing downhill 2002 7.3 Q
Because you have had this van and transmission for some time, and have not changed the transmission pan or made any other modifications, and because the problem just surfaced recently, I highly doubt it has anything to do with the filter - unless you have had some transmission service not mentioned.
Check the fluid level as suggested. It can be very difficult to get an accurate reading on the long dipstick that these vans have as residual in the tube can make it look like the level is much higher than it is. You could also add a half of a quart and see if it makes a difference - don't worry about over filling by a half a quart.
Four time Baja 1000 winner, four time Baja 500 winner. Solo'ed the Baja 1000 to LaPaz/Cabo twice.
4-Wheeling since 1972, Desert Racing since 1989.