Gearbox BV353 Alpine A110 1600S

[Enzo Vacalebre]

Dear friends,
I have notice that the gearbox BV353 of Alpine a110 1600s is the same of renault 18. Can you confirm this new, or give me all the news about this matter? and you can suggest to me a "low price" solution to repair my gearbox?
Thanks in advance for your kind cooperation
bye bye
Enzo from italy