Thread: Diff ratio recommendations

Hi Moorey

What is your original diff ratio & tyre size. And do you want to more , less or the same revs as standard. Somewhere I have a gear chart . That is if I can still find it

Gary

4.11 is what most go for with 35s. However since you have a sals rear you will need a 4.12 front and 4.11 rear. Shouldn't be any problems with this, though some claim they have had (vibration) problems with shight ratio differences in landies.

Btw - the Ashcroft site has a ratio calculator. AND - they have the gears cheaper...

Originally Posted by moorey

I'm looking at changing ratios, as running 35's leaves my 95 dual cab 130 even more gutless than usual, and (IMHO) geared too high in low range when off roading.
Lucky 8, Who i'm ordering lockers from in the states have a few different ratios available. I was thinking maybe 4.12:1 or even 4.37.
Is that going to be too big a reduction for practicality on the highway?
Anyone done the same and has feedback, or just general technical advice?
HD 3.5 R & PHeavy Duty 3.5 R & PAshcroft$328.00
HD 3.75 R & PHeavy Duty 3.75 R & PAshcroft$328.00
HD 4.12 R & PHeavy Duty 4.12 R & PAshcroft$328.00
HD 4.37 R & PHeavy Duty 4.37 R & PAshcroft$328.00
HD 4.75 R & PHeavy Duty 4.75 R & PAshcroft$328.00

What you haven't listed is the price for a Salisbury R&P for the rear.Be prepared for a shock at the price

Originally Posted by isuzurover

4.11 is what most go for with 35s. However since you have a sals rear you will need a 4.12 front and 4.11 rear. Shouldn't be any problems with this, though some claim they have had (vibration) problems with shight ratio differences in landies.

Btw - the Ashcroft site has a ratio calculator. AND - they have the gears cheaper...

Ashcrofts price is slightly cheaper for the R&P's,but the cost of freight is a lot more than the cost from the U.S.

I have been through all this recently.I ended up with something similar to Max (TUSKER) and fitted a 4.11 DANA 60 R&P in the rear with a custom made flange to match the pinion to the Rover UJ.Worked out saving hundreds over the price of a 4.11 Salisbury R&P.

Wayne

Originally Posted by LowRanger

Ashcrofts price is slightly cheaper for the R&P's,but the cost of freight is a lot more than the cost from the U.S.



Wayne

Dave Ashcroft mentioned on another forum that he was very keen to sell some of these gears to AU - take from that what you will.

Originally Posted by isuzurover

Dave Ashcroft mentioned on another forum that he was very keen to sell some of these gears to AU - take from that what you will.

I suspect the 3.75 is for 33's on a Defender/110/130. That said they do very nicely on a D2 with 245/75/16 tyres, which coincidentally are the largest (legal) you can put on a RRC/D1/D2 according to the new NCOP? Unless you live in QLD....which is why I'm moving to VIC!

Moorey - assuming you had 235/85/16 or 7.5R16 on originally, you want a 3.9 diff ratio for 35" tyres. Nobody makes them so it's a 4.12 for you (or 4.11).

Originally Posted by isuzurover

Dave Ashcroft mentioned on another forum that he was very keen to sell some of these gears to AU - take from that what you will.

Yeah I saw that when he said it,but I believe it was in regard to beating KAM prices here,and it was actually the older 4.11 that was mentioned.

The price of the item isn't the problem.It is the freight charge from Britain.

Craig
The true tracks are $498 and shipping is $60
The Detroit for Sal is $538 and $60 for shipping
Shipping for the is close to $350. They are just to long
We have 4.12 Ring and pinion sets. They are $328 front or rear. or $650 for the set. also $60 to ship


Thank You
L8 Staff 716 898 8153

Not expensive IMHO...and yes, they know its for a Salisbury rear