Outer Limits 4x4 Board

Hi,
Looking at changing the ring and pinions on front and rear diffs. Running 33's on my rangie with zf/LT230 and finding it a bit sluggish on the highway. The standard 3.54 ratio's I believe need changing. I am considering the KAM 3.8 or KAM 4.11 Ring and Pinions. Which would you suggest?

Johnty67rangie wrote:Hi,
Looking at changing the ring and pinions on front and rear diffs. Running 33's on my rangie with zf/LT230 and finding it a bit sluggish on the highway. The standard 3.54 ratio's I believe need changing. I am considering the KAM 3.8 or KAM 4.11 Ring and Pinions. Which would you suggest?

Dare i say it but - jap diffs

Thanks but you haven't answered the question about the ratio's?

Johnty67rangie wrote:Thanks but you haven't answered the question about the ratio's?

4.11's for 33's are about right .

Id look at ashcrofts before I looked at Kams

Serg

uninformed wrote:Id look at ashcrofts before I looked at Kams

Serg

x2

X3 for Ashcrofts 4.11:1 or even stronger go 3.75:1 or 4.12:1

Hi,

try using the ratio calculator on our web site, this should help you decide,

ashtrans wrote:Hi,

try using the ratio calculator on our web site, this should help you decide,

Still doesn't work with Firefox Dave. Any idea when it will be fixed???

new firefox happy version should be live tomorrow,

will advise,

Dave

Thanks Guy's, Why would you suggest the ashcroft over the Kam?

I have used Ashcroft 4.11:1 R&P and know them to be good, and Ashcroft are good to deal with, plus they have developed a new range of R&P's that are stronger still.

I am personally reluctant to use Kam's products based on what I have seen/heard.

You need to be very careful not to get a 4.1:1 R&P set - they have small teeth that are not as strong as the larger teeth for 4.11:1. The new range of Ashcroft R&P have larger teeth again and the material they use now has better mechanical properties than used by others for their R&P's.

Johnty67rangie wrote:Thanks Guy's, Why would you suggest the ashcroft over the Kam?

Pretty much what John said:

(1) The new Ashcroft R&Ps should be MUCH stronger than any other rover R&P on the market.
(2) It is almost impossible to get a straight answer from KAM to a technical question.

Thanks again, I'll have a look at the ashcroft gears.

ashtrans wrote:new firefox happy version should be live tomorrow,

will advise,

Dave

This is good dave, one suggestion is that the BW trans does not seem to be listed?

Thanks for your advice guys, Have decided on ashcroft 3.75's due to running smaller tyres on the road between trips. The US exchange rate is currently too good to pass up.

should now be OK with Firefox,

ashtrans wrote:should now be OK with Firefox,

Works fine Dave.

One small thing though, it doesn't let you select alternate low range ratios (Maxidrive etc...)

ISUZUROVER wrote:

ashtrans wrote:should now be OK with Firefox,

Works fine Dave.

One small thing though, it doesn't let you select alternate low range ratios (Maxidrive etc...)

Hi,

you can just use 'other' instead of 'LT230' and manually enter high and low range,

Dave

Opps, pimping my stuff in the wrong section! Matt

matt_w wrote:Pimping stuff in the wrong section!!! Matt

Sorry Matt, but the exchange rate has not been kind to you.

Ashcroft's new gears (stronger than your 4.11) are only AU$315 per (diff)set + shipping from Ashcroft or $340+ from Lucky8 (cheaper shipping ex-us apparently). Either way less than $900 for 2 sets inc shipping.