Hey man. You hit the nail on the head for me.

I have a 1938 1.5 ton and just got the tilton dual master system in , also changed out the trans to an nv4500 (grinds in 4th. will need fixing but for now fine) , also 216 changed out to a 292. I underestimated the amount of work involved. POints I am curious about your truck and mine and the DD question:
1. I am using the original brakes in front. I redid the pads but the drums.. not sure they are spec inside and thinking of getting another set and building up the actual drum lining.. anyway, I
DO NOT feel comfortable taking this thing over 45mph between the steering and the brakes. I cant imagine driving it at 65.. Am I missing something here? are your brakes better than the '38? I have dump truck 4:10 dana 60 axle in back with all new brakes and they seem okay. The pedal seems to low to the floor at stopping though.

2. With the nv4500, it has too much gear.. Wondering if I should have stayed with 3 speed.. This is bc I dont feel comfortable going that fast. It would be in 3rd, barely 4th all the time.
3. Related to 1 & 2, my king pins are being replaced on the 15th. This is probably why I felt the bumping in the front like the tires had lumps.. Maybe I will feel better if we tighten up or readjust the fronts and fix the kingpins..

4. The 292 I have no complaints, so much TQ it will start out in 3rd gear. Some pics I have for now..
EDIT: I just read a post from Jerry, I may need more adjusting on the front brakes and/or at some point spec or rebuild the drum lining itself before I would drive it regularly. But still wondering on the how fast question.