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| jimny reduction gearing of any sort / sierra transfer case https://auszookers.com/forum/viewtopic.php?f=8&t=30425 |
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| Author: | drewhoo [ Mon Feb 13, 2012 2:21 pm ] |
| Post subject: | jimny reduction gearing of any sort / sierra transfer case |
G'day, I'm doing more and more crawler-type offroading. The jimny low 1st is just too high and I find I'm riding the clutch too much. I know theres a few options... Sierra t-case adapter with sierra t-case fitted with reduction gears/shortened jackshaft (I have 99 jimny so I gather that gbox replacement isnt necessary) Trial Jimny Gears Apio Gears (i'm dreaming here) That welded rocklobster thing I see overseas (havent heard of it in aus though) Others? Hoping that somebody is looking to sell any of this stuff, or wants to swap their jimny back to higher gears. Let me know! Cheers! |
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| Author: | monley [ Wed Feb 15, 2012 8:09 pm ] |
| Post subject: | Re: jimny reduction gearing of any sort / sierra transfer ca |
drewhoo wrote: shortened jackshaft Where did you hear that you need a shortened jack shaft? That's a load of shit where every you heard it  Best option is the ORA t-case conversion kit with sierra transfer. Next cheapest, but not best optoin is "jimnybit's" 24% gear set, then trailjimny/apio gears if you have $298121 to spend  What size tyre's you running btw? 
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| Author: | drewhoo [ Wed Feb 15, 2012 8:53 pm ] |
| Post subject: | Re: jimny reduction gearing of any sort / sierra transfer ca |
I'm only running 215/75 because I dont have gearing options and ungeared 235's will be a dog on my rocky tracks, if i was to get reduction.. can probably get away with 235/75 max in nsw before my mechanic will stop giving me pinkslips (roadworthy) and want it engineered. Realise that the sierra swap is the best option, been keeping my eye out for a transfer with the 4:1 ratio's but not easy to find  Didn't know the jimny bits one existed somehow, thanks for that, but not ideal given I want less reduction in high and more in low... I think its a viable option though, and easy for me to installAlso.. typo, shortened tailshaft perhaps I meant.. thats right isnt it? Pretty much learnt all my sierra swap transfer swap stuff from yours and zukenutters builds, both later models than mine though :S |
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| Author: | drewhoo [ Wed Feb 15, 2012 8:57 pm ] |
| Post subject: | Re: jimny reduction gearing of any sort / sierra transfer ca |
Also, pics always spice a thread up... want gearing to stop me doing less of this to get over ANYTHING...  (me on the weekend)
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| Author: | zukenutter [ Wed Feb 15, 2012 9:13 pm ] |
| Post subject: | Re: jimny reduction gearing of any sort / sierra transfer ca |
When planning the Sierra transfer swap I considered three options for fitting; 1. Making my own arms and speedo adapter (ruled this out due to needing a quick fix as it's my daily driver) 2. The ORA kit (went with this because it was the cheapest kit but required Sierra Jack shaft and front shaft) 3. Can't remember the manufacturer but there's another kit that retains Jimny front and rear shafts, kit includes a replacement shortened jack shafts and custom flanges. I think this is probably a better kit but from memory was almost double the price. (this setup was how I was planning to do the home made version) Unless you're planning on 31" or bigger tyres 4.16 gears would probably be your best choice. Bigger reductions will kill your high range. |
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| Author: | monley [ Wed Feb 15, 2012 9:37 pm ] |
| Post subject: | Re: jimny reduction gearing of any sort / sierra transfer ca |
zukenutter wrote: When planning the Sierra transfer swap I considered three options for fitting; 1. Making my own arms and speedo adapter (ruled this out due to needing a quick fix as it's my daily driver) 2. The ORA kit (went with this because it was the cheapest kit but required Sierra Jack shaft and front shaft) 3. Can't remember the manufacturer but there's another kit that retains Jimny front and rear shafts, kit includes a replacement shortened jack shafts and custom flanges. I think this is probably a better kit but from memory was almost double the price. (this setup was how I was planning to do the home made version) Unless you're planning on 31" or bigger tyres 4.16 gears would probably be your best choice. Bigger reductions will kill your high range. D&G tuning Also, if your jumping your front end like that, please, please brace your diff, that's coming from someone who has bent a diff and t-case's with 4.16's gears fitted do come up from time to time. I picked mine up for $150 just as a temp gearing until i rebuild my spare case with 5-14's.
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| Author: | drewhoo [ Wed Feb 15, 2012 9:57 pm ] |
| Post subject: | Re: jimny reduction gearing of any sort / sierra transfer ca |
Perhaps that particular tcase needs a good home when your other one is done? ?? i'm going to get diff bracing from the micoffroad mob, they are down the roadzukenutter, you could probably release a book of your AZ posts on reduction in jimnys!  . I can probably get mounts fabbed,, but the Speedo adaptor is out of my diy league so need to buy adaptor. Would check my local wreckers before picking between d&g or ora kit.I think best to hold out for a sierra conversion and leave the 24% drop in gears alone |
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| Author: | monley [ Wed Feb 15, 2012 10:02 pm ] |
| Post subject: | Re: jimny reduction gearing of any sort / sierra transfer ca |
drewhoo wrote: Perhaps that particular tcase needs a good home when your other one is done? ?? i'm going to get diff bracing from the micoffroad mob, they are down the roadzukenutter, you could probably release a book of your AZ posts on reduction in jimnys! . I can probably get mounts fabbed,, but the Speedo adaptor is out of my diy league so need to buy adaptor. Would check my local wreckers before picking between d&g or ora kit.I think best to hold out for a sierra conversion and leave the 24% drop in gears alone It's not worth making your own kit ( i'm a boilermaker and i didn't even bother making my own arms) I just brought the NEW ORA conversion kit, $660AUD for 2 kit's to my door step  ($330 each in-case you can't do maths ) it's picks up 12 mounting points instead of 8 and has a new speedo dive gear.
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| Author: | drewhoo [ Thu Feb 16, 2012 8:02 am ] |
| Post subject: | Re: jimny reduction gearing of any sort / sierra transfer ca |
For comparison $950 for the D&G kit (not inc delivery). ORA probably more economical but I'll make that decision when I find a 4.16 transfer |
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| Author: | 31zook [ Fri Feb 17, 2012 4:11 pm ] |
| Post subject: | Re: jimny reduction gearing of any sort / sierra transfer ca |
I think a seirra swap will be on par or just cheaper then a jimny tcase set. Also, I have, NIK has, and Royce have all run rock lobster in our sierra's, my Jim will have a rocklobster, then I'll remove that and do another very very fancy never been done before gear swap
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