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4x4 will not engage on my truck. When I shift into 4H nothing happens- front axle is not engaged, no lights are illuminated on the floor 4x4 shifter, etc. I have power going to the actuator, so I believe that the wiring is good but actuator is toast. After doing some research on the issue, I...

I am trying to order some gaskets from my local auto parts retailer, but my truck is inaccessible until this weekend (at a friends- he is out of town). To order gaskets for my front and rear differential, I need to know if the 94 K1500 "S" 6.5TD, auto trans, came with a 10 bolt or 14 bolt...

My radiator is leaking (verified by a pressure test) and appears to be the original radiator. Other than looking old, the rad has been thoroughly cleaned (one of the first things I did after purchasing it) and I have not had any high engine temps since cleaning the rad and replacing the coolant...

I have just replaced the rubber fuel hoses that supply fuel to the fuel filter (manager) and send unused fuel back to the tank. Both of these hoses are about six inches in length, and sit at the rear of the engine (just next to the OPS). They both attach to the metal fuel lines that run into the...

I apologize in advance- I know that there are a million OPS threads on this and other 6.5TD websites; however, I looked through as many as I could find, and I'm still not sure I have the info I need. When I was installing a new OPS, I noticed that the fitting the OPS screws into, which looks...

I've been mesmerized and motivated by the engine building masters on this forum and the DP, most recently by the extremely clean looking yellow power plant built by Ratman/Rich (there are so many others too, TD, the Flatland Fireball..the list is long). Well, I am ready to take the first step...

I need to buy a seal kit for my fuel filter manager. SS Diesel has the kit, and it is a reasonable price, but their shipping prices are really high. Regular shipping was more than my order total, and this was for an order glow plug terminal connectors and fuel filter gaskets & fuel filter...

I have to track down a fuel leak that appears to be originating somewhere in the valley of the beast. To do this I will be removing both upper and lower intakes, and wanted some suggestions about what maintenance, upgrades or mods I can do while I have the top of the engine exposed. Here are a...

The article on Bill Heath's/Heath Diesel's Bonneville truck was a fun read and the truck looks great. I will be rooting for Bill and his team to exceed 130 mph for a record:thumbsup:! I was left confused about the logic behind some of the engine build features, and hopefully the...