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Gear reduction for 235s

  • jtayl153
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08 May 2014 16:20 #114488 by jtayl153
Gear reduction for 235s was created by jtayl153
Looking at getting 235s for my next set of tyres.

Thinking I should get a gear reduction to ease the strain on the drive train.

Is there a kit I can use with the Jimny T-case? What % reduction would you recommend?

I really dont want to find a samurai t-case and mess around with it that much. My Jimnys only done 25000kms.

Hit me.

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08 May 2014 17:15 #114496 by Busta
Replied by Busta on topic Gear reduction for 235s
If it's manual, fit the transfer case from an automatic.

Transfer box ratio guide

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08 May 2014 22:15 #114542 by kirkynut
Replied by kirkynut on topic Gear reduction for 235s
I think you'd be messing about and wasting time and money and effort by not going down the Rocklobster conversion route if I'm honest.

You'll not be satisfied with the results of what can be gained from any Jimny originated gearing.

This is only my opinion, but I don't want you to waste your money to come to the same conclusion as I have just put to you.

If you must though, I think the automatic diffs are lower ration too, so if you can find a written off auto Jimny of the right age, you might be able to get all the parts in one swoop.

The thing about Jimny transfer boxes is the chain drive inside them, which stretches and is too weak compared to the SJ boxes.

Decisions, decisions!

The underdog often starts the fight, and occasionally the upper dog deserves to win - Edgar Watson Howe.

My Jimny Thread Here: www.bigjimny.com/index.php/forum/8-my-ji...on-continues?start=0

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  • jtayl153
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08 May 2014 23:06 #114551 by jtayl153
Replied by jtayl153 on topic Gear reduction for 235s
Decisions decisions indeed!!

I guess the next question is, do I need to go to 235s?

Currently on 215/75 ATs. Haven't had a problem yet.

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  • steffan
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09 May 2014 00:15 #114554 by steffan
Replied by steffan on topic Gear reduction for 235s
You will be giving your cluch a hard life I went from a lobster to standard box for a week and killed the cluch in the mean time walst running 215/80s

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  • jtayl153
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09 May 2014 01:58 #114556 by jtayl153
Replied by jtayl153 on topic Gear reduction for 235s
I've had 215/75s on for the last month. Fine on road, no issues off road.

Clutch is no more worn than it usually is, being 5 years old

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