I'm naively OEM first in general, but Honda is dramatically discontinuing parts which is shifting me away. I have only ran OEM synchros but I would be curious for those who have successfully run Synchrotech. I have taken a few approaches when rebuilding:Klasse wrote: ↑Wed Dec 02, 2020 5:12 pm I'm on another parts hoarding bender, and I'm looking at transmission parts. No major issues currently with my gearbox but one day no doubt.
When people are rebuilding these is it generally the 5 bearings and 3 synchro sets that are replaced? Is the 5/R synchro commonly done? Looking at OEM while it's available but the cost is high. Synchrotech just as good/better? Anything else in there often replaced? I realise it's difficult without having it apart.
-All at once, synchros, hubs, & sliders for 1-2, 3-4, & 5-R, including OEM bearing refreshes (#981040 in 2007, 97 #00171 in 2013)
-Replacing only the affected synchro or full slider assembly (1-2 slider in #010187 in ~2011)
-Replacing all full slider assembly (#981040 in 2018)
-Replacing needle bearings on LSD to ball bearings
This largely depends on the state of the current transmission. For 97 #00171, I had a 3rd grind and the entire unit had ~130k, so I went proactive and replaced the full sliders and all bearings. For #981040, after ~25k and 10yrs of ~60x track days, I waited a bit too long to replace just the synchros. I didn't have any grinds but the shifts weren't as crisp & clean, so I went with all new slider assemblies. Prior to Honda massively increasing prices, I was very proactive for both longterm reliability and preferred OEM Honda quality.
