Airtrek gearbox question

[ha evoo]

Hey guys i hope everyone is going good.
I have a evo 7 gta and i recently bought a evo 9 gta box for the better wave spring and all that but got supplied a airtrek box and the business that sent it to me said the airtrek also has the better wave spring and plantery gears. But ive read that they dont and its the same as my evo 7 gta box.
Does anybody know if this is true

Thanks for your help and time

 

[jdmftwyo]

Hey guys i hope everyone is going good.
I have a evo 7 gta and i recently bought a evo 9 gta box for the better wave spring and all that but got supplied a airtrek box and the business that sent it to me said the airtrek also has the better wave spring and plantery gears. But ive read that they dont and its the same as my evo 7 gta box.
Does anybody know if this is true

Thanks for your help and time

TBH I wouldn't trust any reseller anyway. Id still have the box sent to someone with experience with the W5A51/F5A51 and have it looked over anyway.