Author Topic: Oil pan gasket replacement  (Read 453 times)


  • Newbie
  • Posts: 25
  • GMC K20
Oil pan gasket replacement
« on: April 13, 2019, 09:35:11 AM »
85 GMC K20 oil pan gasket
Just got truck back from having a majority of seals and gaskets replaced. Had to take it back because the valve covers were leaking. apparently the cork gaskets they put in were to thin so they replaced with thicker ones. Now oil pan gasket is leaking which is also cork. why wouldn't they just go with a better material like the pine piece  Fel-Pro makes. Not even sure if they put a bead of silicone. What do you feel is the proper oil pan gasket and installation process for this truck. Cork or better gasket with silicone?

Online bd

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 5636
« Last Edit: April 15, 2019, 09:01:07 AM by bd »
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline blazer74

  • Site Supporters
  • Junior Member
  • ******
  • Posts: 760
  • Newbie
Re: Oil pan gasket replacement
« Reply #2 on: April 15, 2019, 04:09:53 AM »
One piece Felpro all the way.