PAR uprated GTi-R synchro gearset, notice size of teeth for 2nd gear, they are massive and will not break.

PAR 1/2 dog 1st and 2nd gear for the GTi-R. Left gear is 2nd gear & right gear is first gear. Notice size of dogs on 2nd gea

Side view of PAR GTi-R 1st gear which is dog engagement and has helical cut teeth (not straight cut) to not make the whining noi

Side view of PAR GTi-R 2nd gear which is dog engagement and has helical cut teeth (not straight cut) to not make the whining noi

Left is PAR GTi-R dog 2nd gear, right is PAR SR20 FWD dog 2nd gear (straight cut teeth also).

PAR SR20 FWD dog 1st gear (left), slider (centre) and dog 2nd gear (right). Notice they have straight cut teeth (instead of heli

Another view of the PAR SR20 FWD straight cut teeth dog 1st gear (top), slider (middle), straight cut teeth dog 2nd gear (right)