[lowrollin70gmc]

Quick update: I used the 68 to move to NoDak and it towed my car trailer with the 63 and my 37s at 75mph without breaking a sweat. I'll be rebuilding the NP205 as I'm getting some slop from the output shaft and it needs it anyways with almost 200k on it.

Other than that I've been alternating driving it and my 63 to work and it's performed well except for the throttle rod backing itself off (full throttle was actually 1/4 throttle) but nothing some loctite didn't fix.

Once the trans case is rebuilt I'll regear the front, possibly with an ARB, lengthen the front driveshaft, and then start turning up the VE pump on the Cummins. I want to make sure there are no weak links (transfer case thunking) before I do that. I can move the air (S300 based 62/65/13 w/ PowerStroke intercooler) now I need the fuel.


Question for other Cummins guys: How did you wire the fuel heater? I'm thinking a switch in the cab for that and the cold start advance thingy. Or can I wire in the stock intake manifold temp switches to automatically turn them on? Of just wire the fuel heater to ignition hot and unplug it for the warm season.

I'm also going to be switching fuel filters soon as the stock one is 25micron and I found a Donaldson with 11 Microns P550588 that is the same thread and gasket dimensions but just a little longer and no more water in fuel sensor. I also found a 5 Micron one but it's a little bigger OD (same gasket) but I'm not sure that fine of a filter is necessary if stock is 25. I'll also be putting a larger air filter on it and redoing my intercooler piping (cobbled together to get it running).

Any opinions on filters?