I have a 2006 GGN15R Hilux cab-chassis with 270k but a delightful vehicle which will be a keeper. The only issue is that around 80% of the time there is a lag of about 15secs in drive at start up. There are no other issues with the transmission. I am looking for advice please as to whether I should put it in for a Toyota service or purchase a replacement used transmission from a later model with low kms eg <100k. Thks Wayne