Gmc grease fittings
Have a 2011 GMC 3500 Duramax. Two of the grease fittings are hard to get to, would like to change to 90 degree fittings. Does anyone know the tread size of the fittings.
Forum Discussion
- It isn't that bad of a job....
- I have a 2012 and yes the inner three grease fitting are a bit tough to get to. I first picked up a set of the 90* zerks but found them to be a pain to point in the direction I wanted and also be snug. You have to shim them with small washers to get them to line up the way you want. I ditched them and picked up a 90* adapter for the grease gun. Problem solved and much simpler.
- I have what sport45 did. Love the 90 degree adapter on the grease gun
- Like Charles said the best thing to do is take one out, if you can, and shop for a replacement. There are usually 2 types of thread so you can't say for sure until you take the old one out.
Don't forget that there are press-in zerks too, these can be spotted by the fact there's no flats on the zerk, so no way to unscrew them. I wouldn't be surprised to see these as OEM. - You can also leave the grease zerks alone and get one of these for your grease gun instead...
Grease Gun Right Angle Adapter - Go to the auto parts store, take one out and take it in to the store.
