06 MT drag/ resistance in 1st

Last two days I have felt a little bit of drag/ resistance as I let the clutch out to accelerate from a stop into 1st gear. It's not a lot of drag- just enough that takeoff isnt quite as smooth as before. No noises or vibrations. feels like maybe a brake shoe/drum dragging. However, not pulling right or left.

I tried to search, but just saw a lot about rebuilding calipers. Has new brakes front and rear all around with the exception of drivers side caliper, which looked pretty good. Didnt replace wheel cylinder on rears either, but again, looked really clean. Had some trouble with brake cable being really loose when I got the truck, but it adjusted out fine when I replaced the rears.

Anyone experienced this?
Any guesses?

 

Also, started happening first two days of freezing temps since I have owned the truck. Anybody have issues with brake shoes/ brake cables freezing?

 

I would suspect seized calipers. Changed a lot, especially 10+ year old models.

Easy way to tell is to jack up each wheel and spin it, should spin freely.

Hard way to is push each caliper back.

 

Already replaced pads/ rotors on both sides and caliper on pass side. I will have to take another look at drivers caliper, but didn’t see anything that looked like an issue when I did the brakes