Went to Ohio today with my 4x4 gas truck and open trailer to pick-up the pickup. Decided to put the gas truck on the trailer and see just how the trans would work on the 364 mile drive home through Chicago traffic the last 90 miles. Seemed to work fairly well, but noticed a bit of slipping though I noticed it before the trans line blew, so nothing has really changed. Think it is still worth changing the fluid again and the filter? Anyone know the adjustments on a 68RFE trans? Everyone I talked to won't touch them..