paul maitha

thanks for your advice Twin Turbo

hi, my name is paul from kenya. I have an automatic nissan caravan which i replaced its original engine with a QD32 one. After the change, i chose to maintain its automatic gearbox since it was working fine. After several kilometers, the gears stopped working while the car was in motion and actually it led to the ply wheel breakage. my question is whether its advisable to buy another reconditioned automatic gear box or i go for a manual convertion?