Gt avalanche headset size clearance

Product code: Gt avalanche headset size clearance
I would like to replace the headset bearings. GT sent me this chart. Am I reading this correctly top bearing is 1 1 8 and lower is 1 1 2 diameter. Kinda new to clearance, 2019 GT Avalanche Headset Bearing size r Hardtailgang clearance, GT Avalanche Sport 29 microSHIFT Mountain Bike clearance, 16.5 GT AVALANCHE ALU 7000 FRAME SURLY FORK W DEORE CRANK CANE CREEK HEADSET clearance, GT Avalanche Sport Review Weekend Adventurers clearance, rdcycles GT Avalanche Natin Tamaraw SRP 16 000 Specifications Seatpost size 31.6mm dropper post ready Sizes 27.5 29 available in S M Instagram clearance, Avalanche Expert GT Bicycles clearance, Avalanche Comp GT Canada clearance, GT Avalanche 3.0 Disc review clearance, GT Avalanche Sport 2021 Mountain Bike Damian Harris Cycles E bike specialist Cardiff UK clearance, rdcycles GT Avalanche Natin Agila SRP 16 000 Specifications Seatpost size 31.6mm dropper post ready Sizes 27.5 29 available in S M Instagram clearance, GT Avalanche Elite Deluxe 500 Watt 20AHR Venture Scooters clearance, Avalanche Comp GT Canada clearance, Avalanche Sport GT Canada clearance, GT Avalanche Sport Mountain Bike Grey Alans BMX clearance, GT Avalanche Expert 2021 Mountain Bike Damian Harris Cycles E bike specialist Cardiff UK clearance, GT USA Mountain Bike Avalanche Sport 650B 27.5 Cycling Boutique clearance, GT Avalanche Expert 2021 Mountain Bike clearance, GT Avalanche Sport Gunmetal 2024 Mountain Bike Les s Cycles clearance, 2021 GT Avalanche Comp Mountain Bike in Black clearance, GT Mach One Pro 2022 20 Complete BMX Blue clearance, GT Bicycles Avalanche Sport Mountain Bike SALE clearance, GT USA Mountain Bike Avalanche Sport 27.5 650b 2019 20 Edition Cycling Boutique clearance, GT Avalanche Elite 2021 Mountain Bike Damian Harris Cycles E bike specialist Cardiff UK clearance, GT Avalanche Comp Deluxe 500WATT 20AHR Venture Scooters clearance, GT Bikes Avalanche Natin Limited Edition Aluminum Bike Frame Tamaraw Supreme Bikes PH clearance, 2020 GT Avalanche Sport Specs Comparisons Reviews 99 Spokes clearance, Avalanche Comp GT Canada clearance, GT Avalanche Expert Bike America clearance, Budget HEADSET Upgrade on the GT Aggressor Pro clearance, Avalanche Comp clearance, GT Avalanche 2.0 clearance, GT Avalanche Sport 29 inch Dewitt Bikeworks clearance, 2025 GT Avalanche Comp 27.5 29 10speed Mountain Bike clearance, 2019 GT AVALANCHE COMP FRAME. BMX Bicicleta Buenviaje Facebook clearance.