Gen 3 transfer box chain replacement

Recently I’ve changed the chain, decided to use TG one, and all good so far, there 2 types of chain “narrow” for AT and “wide” for MT. TG also provides the part numbers so you can easily understand which is yours. Mine is jb74 AT, but t-case almost identical to gen3

I imagine the different gear ratio obtained by the Trail-Gear set-up is obtained by varying the number of teeth on the sprockets. Depending on how this was obtained, may well change the number of links on the chain and therefore it's length.

Roger

If they were different lengths then I would imagine that would be documented and the correct part would be included in the kit.
Seeing as it isn't, and knowing that Yakuza has managed to drive 50,000km before having issues, then we can be absolutely certain that incorrect chain length is not the issue.

Thanks all!

Yes chains are supposed to be the same length. But the change in wheel diameter and sprocket number on trail gear kit can return a slight more slack as I got the whirling chain noise under load when I changed the sprockets 50000km ago. And the noise never got better or noticable worse.

And 50000km with those vibrations, My style of driving, M16 engine, alot of towing and Norway is not so flat. I guess it is to be ecpected that the chain is stretched.
I must say driving together with a bunch of Jimnys and even with my trailer i pulled away easy uphill from every one even the new Jimny. I love every single one of my Liana Horses. Still worth it all the bits considering.
I guess I will be swapping to an ebay Suzuki original chain. Will check local prices too. The NOK is a weak currency thanks to mr Putin so it is not cheap to buy abroad like it used to.

wrote:

 Believe Tim Lambert
Lambert's engineering.co.uk  does kits for chain transfer boxes
I personally would go SJ transfer
I am going to be doing my spare 413 box but can't decide on 4:90 or 6:4 sumo gears 
Current 4:16 trail gear has been fault less since 2018

If the gear ratios only could fit the 2005 jimny diffs I would do the SJ transfer swap, I like gears better than chains. But I would need crazy large tyres or new diffs to fit. The high range is way off any usable higway rpms.  Original 1.00 and the trail kit gear give me 1.17 wich is ok for 29 or 30", but a little high with 235's. the SJ case will be 1,58 high range. Fitting for 35 -ish tyres. 
And there is some fabrication needed too like the drive shaft and cradle.

Update on the chain. Bought New original on ebay from Partsouq Dubai (!) looks genuine and all good. The worn chain was stretched approx 7-8mm in lenght compared to New one.


All fit just fine. Hoping to do a test drive when I got it all together in a few hours of garage time.