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Title: Gear box overhaul kit. Post by: fastjbav6 on February 18, 2025, 12:49:00 AM Hello Guys,
Where is the best place to buy crash box overhaul kit these days? Rare Spares are selling for just under $320 and none available in WA. Muscle & Classic Parts in Campbellfield VIC 3061 are selling for just under $196, same part number 7430864 as Rare Spares. Haven't purchased a kit in over 30 years. Regards Seb Title: Re: Gear box overhaul kit. Post by: ardiesse on February 18, 2025, 11:02:32 AM Availability is a problem. One thing to check, though, is whether the overhaul kit has a single or double row mainshaft bearing.
The last couple of times overhauled a grey gearbox, I re-used almost all the original parts. One gearbox needed a cluster gear and first-reverse gear; the bearings and shafts were good to re-use. In the other gearbox the mainshaft bearing started to growl, and I replaced the original single-row bearing with a good, used double-row bearing. I've heard that the double-row mainshaft bearing is also used in a Mitsubishi L300, except that the Mitsi bearing has no circlip groove in the outer race (would need to be machined). Places like CBC Bearings (or Coventry perhaps in WA) have a good cross-reference with original part numbers if either of the ball bearings are unserviceable. But I wouldn't replace a double-row bearing with a single-row one. The 3/4" expansion plugs for the countershaft and reverse idler shaft are standard items. Rear extension housing and transverse selector shaft oil seals are also available separately. Rob Title: Re: Gear box overhaul kit. Post by: Harv on February 18, 2025, 02:17:21 PM Rob is right, most of it is reusable. Gaskets could be cut from sheet stock from Supercheap or similar. Some random parts if you want to make a go:
Selector Shaft Seal (NAK Australia) E062.100.25 Gasket Set Grey Gearbox FX-EK (Rare Spares) 7405896 Front Propeller Shaft Housing Seal (Rare Spares) H1067 or (NAK Australia) E137.206.25 Ball bearing (UBC Australia) 6206RSNR or (NTN Toyo Bearing Co) 6206NR Ball bearing (UBC-Australia) 6205RS or (NTN Toyo Bearing Co) 6205NS Cheers, Harv |