Truck Repair: oil in rador, oil filter housing, oil coolers

Question
i hav oil in rador  i was told its from oil cooler -wheres is the cooler and what does it look like and hard is it 2 repair

Answer
Oil in radiator most probably is from the oil cooler. But because you did not state your truck make/model or engine model it is not possible to exactly pinpoint the location of the oil cooler in your truck.
However some oil coolers are embedded beneath the oil filter housing assy, some are fitted besides or in the front of radiator. Get some mechanics to help you identify the location of cooler in your own truck.
Oil coolers are repairable and confirm only through pressure testing for leakages. However, it is most advisable to replace than repair.

Regards,