Track width issues....help needed

[ChadW]

Alright guys...I need some serious help...Im totally lost at what's going on here...Long post so stay with me... bought a 66 c10 project that was "started" that i have been working on for a cpl years now....Was starting to mock up body panels and got a set of Slosh Tubz in as well...something is not right with my track width on the front...Here is what i have....I have a Thorebeck Brothers P47 front crossmember, with CPP CP4S4 2.5" drop spindles and Ridetech Strong arm control arms.....I went back and looked up all parts to see what they say about track width...The P47 crossmember says it will narrow the track width 2.25"s and i called Ridetech about the strong arms and they say they do not add or subtract as they are stock width...The spindles say CP4S4 on them which i see are 2.5" drop spindles...1.25" thick rotors are on those and i have US MAG U102 rims which are 20x8 and when i looked them up say they have an offset of 1....I ran a tape measure from inside of tire to inside of tire and measure right at 53"s....Can anyone help me figure this out...Could it be the wrong spindles? wrong rotors? Im lost ....attached are some pics as well...
The more i look at this the more I think that it may be due to the offset on the wheels...Thoughts???

https://photos.app.goo.gl/aay4rXc2HAKqK13C6

https://photos.app.goo.gl/mg2Z7mrV8KQ68Mw66


https://photos.app.goo.gl/J62u1fXcK4muGbmc8