260DET Posted May 7, 2003 Share Posted May 7, 2003 Any tips for rebuilding a FS5 gearbox? The FS5 is the Nissan 5 speed box used from around '77 on. The engine puts out around 300hp so the box needs to be as heavy duty as possible. Have considered a couple of things. Apparently NTN make ball bearings with extra balls for a higher load carrying capacity but I don't know yet whether they make them to suit this box. Any other manufacturers do likewise? SKF? Secondly, the bearings in aluminium housings tend to come loose so I was thinking about loctiting them all in as a precaution. Finally I was considering using Redline oil, at present Shell XGO 75/90 is used. Quote Link to comment Share on other sites More sharing options...
260DET Posted May 15, 2003 Author Share Posted May 15, 2003 Any thoughts? Anyone use loctite to secure the bearings which are located in aluminium housings? Any preferred brand of bearings? Quote Link to comment Share on other sites More sharing options...
aviatorx Posted June 2, 2003 Share Posted June 2, 2003 The bearings are friction fit to the housings and don't require any type of Locktite....If you are spinning the outer race then you have other problems! I don't think you'll find a gearbox that requires you to adhere the bearing to the case ... As far as selecting a bearing, one with a higher ball count may theroetically be able to carry a higher side load by spreading the load over a greater surface area, but the main concern is getting the dimensions correct for a proper friction fit on both the shaft and bearing seat. Sounds like a trial and error proposition to me at best. Go for it and reply with your results! Some have posted using a Redline oil Vs standard gear oil in T5's and have mentioned some benefit - do a search on Redline oil and see what pops up. Here's one thread: http://www.hybridz.org/phpBB2/viewtopic.php?t=21091&highlight=redline+oil Quote Link to comment Share on other sites More sharing options...
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