Reduction Gears

[BigRAWesty]

I think the case needs a little clearance for the bigger 80 whatever reduction. Pretty sure the 43 fits in nice

[macca]

When my 43% were fitted the mechanic aid a little trimming was require for clearance.

Knew that was the case for the 80%, maybe he was being cautious.

[jay see]

There is a technique for "driving through the brakes" that all auto drivers should learn if you don't already know it. Can descend almost anything without drama. I would also consider a torque converter lockout (in an auto) before reduction gears otherwise you still won't get the direct drive you need to take advantage of the reduction gears.

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Yes I know about this, but physically I can't use my left leg for that purpose, if I could I would be driving a manual without a doubt.

[Crate]

Also I noticed on patrol4x4 Marks are also doing 63% reduction gears. They have a group buy going atm. Would be the reduction I would get, 43% is not quite low enough imo esp in auto downhill.

[Ben-e-boy]

Also I noticed on patrol4x4 Marks are also doing 63% reduction gears. They have a group buy going atm. Would be the reduction I would get, 43% is not quite low enough imo esp in auto downhill.

My mate has a 5L 80 series stock geared, he has great engine breaking, 43% is slightly lower than that, you'll be surprised

[jay see]

My mate has a 5L 80 series stock geared, he has great engine breaking, 43% is slightly lower than that, you'll be surprised

If I can get the patrol going down hills at half the speed without touching the brakes I'll be happy with that.

43% reduction is close enough to half.

[Agronaught]

I'm also thinking of doing this ahead of a front locker install as it would provide more control during decents and over obstacles.

I found the combination of larger tyres (33) on the manual tb48 to be a little to quick in low 1st.

Just to confirm this shouldn't impact high range performance at all, right?

[jay see]

I'm also thinking of doing this ahead of a front locker install as it would provide more control during decents and over obstacles.

I found the combination of larger tyres (33) on the manual tb48 to be a little to quick in low 1st.

Just to confirm this shouldn't impact high range performance at all, right?

High 4, no. The gears are for low range they go in the transfer case.
If I'm wrong someone will correct me.

[Cuppa]

If only after greater control during descents here is another possibility http://www.nissanpatrol.com.au/forum...=exhaust+brake but it won’t give the climbing ability at idle like in Ben-e-boy’s video.

I ended up putting it all on the back burner & will re-visit greater downhill control if & when I find I need it.

[FNQGU]

My mate has a 5L 80 series stock geared, he has great engine breaking, 43% is slightly lower than that, you'll be surprised

Yeah, I've got the 43% reduction with the Auto and Manual Lockup and it works well on the downhill steep descents for the general 4wdriving that i find myself doing. At some stages I have found myself wanting a lower gear again (one section on the Creb Track and some rock drop-offs at Maytown), but it is only on a few rare occasions, and to put it in would only compromise the rest of my off-roading in low range. I'd be interested in trying that 63% reduction, but the 85% would be too much for my needs.