Always keep 1 eye on res tank levels, you may find "patterns". "Keep an eye" for minor leaks anywhere, especially, mani, corrision/wet mani bolts, staining on btm of W pump, T cover, old core plugs, and the new rads trough/crimps.
I "HAD" 3 tiny leaks, block htr, mani bolt ,T cover; res tank level would drop about 1/4" per month. Fixed 2 of them, but I wont risk touching mani bolt.
99 1500 SLT QCSB 4x4 5.2 227k mi; SUN vac ga, tow hooks ... umpteenth 46re, LONG 28K lb tr cooler, HAYDEN temp ga ... 3.55 c/w broken clip, 255/70 MICH M+S ... RED HEAD, DSS, MOOG trac n adj BJ; AMS in motor n diffs; HUSKY flr mats ... New shocks, drums, EXTREME rotors, bat; rebuilt mas cyl, alt ... Recent windshield, rad, rr springs, frt axle joints n seals ... Hand vac pump to control recirc door
97 1500 SLT CCSB 4x4 5.2 auto 3.55 lsd, factory tr cooler, HD fan clutch; 140k mi
--Both have spray in box liners; need PS coolers, htr cores and better water pumps for htr/winter use