I'm replacing the stock muffler this weekend, but im not sure of the size to buy.. Currently the one I'm looking at is available in sizes between 2 and 2 1/2 inches in and out. The only thing im replacing is the muffler, just a basic cut and and weld in, So I would like to stay as close to stock pipe size that I can.



The oil question is this, The truck had used 5w30 synthetic since it was bought up till the last 2 oil changes, Less than 6k miles, got them free with tires.. of course the shop uses 10w30 bulk crap, Now the engine makes a tapping.. I'm hoping its the exhaust manifold bolts.. Anyhow, would it hurt to now go back to 5w30 synthetic?

Totally unrelated - Wonder why my profile pic isn't showing up... Any ideas?

 

Drain it out and replace it with the right stuff. Then run it a short session on that oil and change it again.

IndyD

 

Fully synthetic is better..... Change it over.

Muffler should be 2 1/2 piping.

Pictures....... Your not doing them right. Upload a pic to www.photobucket.com or other hosing site and just insert the entire IMG code as text copy and paste.

 

changed the oil over to Mobil 1 truck/SUV. Ticking is gone!

Installed a Cherry Bomb Turbo 2 muffler - Considering the price, I figured if it wasn't loud I wasn't out too much. I was surprised, it actually sounds pretty damn good. Not super loud but has a nice rumble. can't beat it for $20, Which now has me thinking if 1 sounds good 2 would sound better..

I'll make the proper intro post with good pics once I find my digital camera!

 

Thanks for the update and looking forward to the pic's.