Gear box overhaul kit.

[fastjbav6]

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

[ardiesse]

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

[Harv]

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

[fastjbav6]

Thanks for the info guys.  Put a 2nd hand unit in until I can overhaul it.