They make inline strainers like those for dry sump oil systems, but don't use one meant for fuel as it would cut thr flow way down with the thicker viscosity fluid flowing through it. Stock hose size is 5/8" id on all trucks. 01-early 03 only had -8(7/16" id) fittings in the bellhousing, while 03+ all used -10(9/16" id).