"imported" 80 apparently needs new gearset sent from Japan???

[Locked79]

3.73 gearsets are available in Australia for the 9.5 rear and also the 8" high pinion front.
Front #087 139098
Rear #087 139099
I was told they are a japanese gearset made by the toyota gear cutter. Take it how you want.
If i remember correctly the rear was about $650 and the front $900. These are the 41/11 sets, not the 37/10. You could possibly use a 37/10 in the rear as they are alot cheaper but a front 37/10 does not exist for the 8" high pinion front

 

[Howard705]

Thanks guys! Hope you all had a cracker of a weekend.

@scottyryana the only source for the gearset so far is ex-Japan at a retail cost of approx $1,200. Still phoning around to find other options though.



Hi Ken,

Thanks a lot, much appreciated. Actually, I think I should be able to get most of the parts except the gearset. Getting a few quotes today and should have them in the next couple of days. I was told that when new bearings are installed that the preload and everything must be readjusted, is that correct? Would it not be possible to set the preload with a scale and vice? I will give it a go but I might send you a message if I get stuck - thanks for the offer!

From reading around and looking at the gears, it seems the backlash is set by adjusting the position of the ring by turning the large nuts outside of the bearings by an equal amount and in the opposite direction. Is there anything else to look out for?

I also have slight grooves in the axle shafts which I think caused an oil leak on one side straight after the last CV job. The other side held up but also has a slight groove. I figure I should get both redone - any reason not to? I think the engineering guys here can either weld and smoothen over the top or put a sleeve over.

@toolsrus - that sounds like good advice, I'll do that for sure. Any idea what the spec would be or where I could find it? Seems like 0.2mm?

Cheers!

Phil

New or used bearings-set preload. Can do it by feel if experienced. That's how to set backlash-BUT with the wear I'd imagine to be a bit loose. Can do the same by eye without dial indicator if a problem. could probably devise a way with feeler gauges and vise grips also

 

[Howard705]

I have used axles with grooves on other makes plenty of times. The seals have a lot of forgiveness in their tolerances.

 

[Roach15]

Hi guys,

Latest news in this saga is that after calling around myself and visiting every spare parts place here apparently there is a new gearset in South Africa that I can have delivered here in a day for around USD1,000. Also apparently it will fit everything except the pinion flange which has been superceded so I'll need a new pinion flange as well. I have all the other replacement parts already including bearings, crush sleeve etc.

I know it's a question only I can really answer but do you think I should just replace everything and have it assembled by the specialists to save future heartache? I'm not made of cash but if I'm taking a big risk by reassembling myself with worn gears then maybe it's worth making the investment now. Appreciate your opinion on that!

For what it's worth, the spare parts place that found the gearset is called SJ motor spares in Windhoek.

Cheers,
Phil

 

[BILT4ME]

To set it up yourself, you're going to need a dial indicator set, bearing pullers, a press, and some other various tools. Are you up for that? Why not have a local set up what you have (put it back together) and run it until you are in a position to really do it right? Ultimately, it's your decision to bring in unknown parts from South Africa, but it depends on your schedule and how fat your wallet is, as well as what you need to do.

Good Luck!

 

[Tools R Us]

Have you priced a whole new diff assembly from Toyota? With the parts that you are purposing it maybe cheaper, ready to go, just drop it in.

But, in reality, you lost a pinion bearing, doesn't even sound that bad, pinion gear didn't dig into the carrier, didn't make a bunch of metal shavings, etc. Lots of rigs have done this and new pinion bearings, seal, crush sleeve, set preload, set backlash and toss it in, good to go. I have done several, most with 35"+ tires, most wheeled often, and all are still going with no issues.