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Hey guys, just finished installing an hx35 on the old 6.5 this weekend. Previously I had installed an HX40 but didn't pay any mind to the exhaust housing size. 18 cm was a little bit too big with the NV4500 so it made driving the truck almost miserable. Snagged and HX35 from a 12 valve a few...

Hey guys back again and potentially about to venture on round three. My other two 6.5s have proven to be nothing but reliable cheap fun so I'm possibly looking at my third. Just looked at it yesterday and I'm going back this Sunday when the owner has the keys to see if it'll fire up. The story...

It appears that something may potentially be wrong with my brain. Some may say it's not a bad thing others call me ridiculous but I just couldn't stay away from owning a 6.5. I picked up a running 1993 k3500 single cab 6.5 with an nv4500 209k miles about 2 weeks ago that I was told needed a...

Howdy y'all, I've got a 1998 GMC k3500 7.4 CCLB. Dash says 220k miles. Having a problem with my speedometer bouncing pretty bad past 65 mph. Depending on your speed determines how much it'll bounce sometimes up or down anywhere from 5 to 15 mph. While the needle bounces my scanner showed to...

This is my first post on here hopefully it's not a tough one for you guys to help me figure out. I bought a 1998 Chevrolet c 2500 with a 6.5 in it not running. I was told it would start when cold but not when hot. I ended up replacing the injection pump with an ACDelco remanufactured pump. New...