Hi,hank,this whisky6,i did not put on a 6.0 as they are scarce in this area so
i put on a HAYDEN 1-4810 cooler sold at napa.
Right now i have amsoil in tranny. the truck has 270,000 miles on it and we bought it used so i do not know if tranny was rebuilt i believe it had about
100,000 miles on it when bought it i was going to put amsoil back in it but it
was going to cost about 175.00 to do it and with that many miles i may just put regular tranny fluild in it that should be good for another 30,000 miles
just keeping my fingers crossed it lasts that long,thank's,whisky6