Thread: Diff mystery solved

Best of luck max

it grenaded alright , we heard it standing on the other side of the Hill . I'm glad you 're sorted though max ,

my Uni-Joint on Flange on the rear Prop Shaft is ordered and is now getting rebuilt, much cheaper that Buying a new one.

But whist I had my car in ATV , it's getting King Springs and Bilstein fitted. both front and rear shocks were leaking..the OME ones were a few years old...

ah and the rear OME springs were severly sagging ..

All Good Max , thanks heaps for a Great Trip and say Thanks to Flash , could you PM me his number . thanks mate..

FYI Lokka

Its now evident I've been running around on a front 4.11 & rear 4.10, for six months without any ill-effects in terms of windup. No difference in feel or handling, on or off road performance. I dunno what that Outer Limits poster was on about. If Cal415 still wants to down this path, I'd say just do it.

Regards
Max P

This is what a US diff expert says on ratio differences:

I have seen Ford use a 3.50 ratio in the rear and a 3.54 ratio in the front, and I have also seen them use a 4.11 in the rear and a 4.09 in the front. I have found that as long as the front and rear ratios are within 1% that the vehicle works just fine on the road, and can even be as different as 2% and work just fine off-road with no side effects.

1 point difference in ratio is equal to 1%. To find the percentage difference in ratios it is necessary to divide, not subtract. In order to find the difference divide one ratio by the other and look at the numbers to the right of the decimal point and how far they make the answer different from 1.00. for example 3.54 ÷ 3.50 = 1.01 or 1%, not 4% different. And likewise 4.11 ÷ 4.09 = 1.005 or only a 1/2% difference. These differences are about the same as a 1/3" variation in front to rear tire height which probably happens more often than we realize.

Randy's - Tech Library Myths regarding diffs

I find it hard to believe that the slight difference in strength between a 4.1 and 4.11 meant you were blowing diffs? What size tyres are you running?

But anyway - it is good you have finally seen the light - Salisbury all the way

Outer Limits 4x4 Board :: View topic - 4.10 and 4.11 diff centres