Drilling Line to Lube

  Does it really Help? YES! BUT drilling line to lube can also cause a truck to have delayed engagements into gear after the Truck sits overnight or Longer.  Drilling a line to Lube in the Pump on the E4OD unit increases Cooler Flow by at least .3 gallons per minute thanks to the SonnaFlow, We have the Proof that it works but the drainback problem it causes is why I DO NOT RECOMMEND IT! If I come across a pump that has this modification done to it, I plug the hole. Sorry for Delays in updated Info but my Shop has been extremely Busy and I try to get away and do a little Fishing when the weather allows before the Summer like weather is Gone!