I've been riding my M38A1 around town quite a bit

[Deadguy]

And a few things have popped up. Is the throwout bearing louder than on a modern vehicle? I know it is on some old cars. Is there a bit of resistance naturally in the drivetrain? It seems to come to a stop fairly quickly, and when it's on a slight incline, it doesn't roll. I regreased the axles, replaced the bearings and shims, replaced the gear oil in the axles, transmission, transfercase, and engine, replaced the Ujoints, greased all the zirk fittings, upgraded the brakes to 11" drums, replaced the bellcrank, tie rod ends, and replaced the shocks and lief springs. The death wobble is long gone, but it seems a bit stiffer and slower now. Maybe all that stuff just needs time to break in? Opinions? I'm going top swap the engine oil again, is there a recommended weight for the winter?
Oh, and one more thing! The fuel gage registers from empty, up to a little over half a tank. I fill it more, and the needle still doesn't go any higher. It falls, when I have used up more than half a tank, but not until then. Any suggestions there?

[frankthecrank58]

i'm assuming your 11' brakes are self adjusting. if so they may be adjusted too tight. put your jeep up on jack stands and see how much drag is on the brakes. the shoes should just make contact with the drum to make a scraping noise. if there's too much drag, then back off the adjusters a bit. that's my thought as to what you describe as symptoms. hope you find the cause.

[skyjeep50]

Answers to your questions: No, Yes - some, No - jeep should roll easily. Also check wheel bearing pre-load and adjust if needed - after you drive the jeep are the hubs hot? Brake drag could be involved as already mentioned. Fuel gauge problem - go to the "Downloads" section of this website, there is trouble shooting section on 24V gauges, your problem may be with the sender or the guage, going through the steps will help isolate the problem.