Hello forumers, i need some suggestion/opinion regarding my E36 UK 5 speed P18 2.8 engine. Im not really a technical type of guy, im not familiar with the technical terms , just follow what recommended by the mechanic. Therefore i think this forum gives room for me to ask around for other recommendation from the sifus here. Recently i encountered gearbox problem as it enter into "safe mode" and the yellow gearbox icon appears on the speed meter. When i drive its like only engage to the 2nd or 3rd gear only, driving at 60km/h( Thats the fastest it can go) with 4.5 RPM (WOW!) To be sure i send to my regular workshop at kayu ara for diagnose and too bad it is what im scared of. The gearbox has slip at 4th gear. To rebuild he said goin to cost RM6-7k as the repair kit is expensive and hard to find. when i ask why so expensive mahh,he just said my gearbox is rare. He recommend me to buy a halfcut with the same type of gearbox to replace rather than rebuild it. The halfcut gearbox cost Rm4k and trade in my old gearbox, as according to him good condition and cheap lahh with 1 month warranty. Plus workmanship and service goin to cost me rm5k.So my question here to the sifus are 1) whether to rebuild or to replace with half cut? 2) Is it true the repair kit is expensive and hard to find?3) The price ok kahh?4) How to identify the halfcut gearbox is in good condition? dont want after 1 month have to rebuild pulakk4) Got any other half cut shop the has the said item with lower price?5) Any other recommendation/suggestion.Please help. Thanks