Thread: Ashcroft ATB/Torsen Diff Front, Centre & Rear Install

I find it worse now as I have ramped up the power, when you sink the boot it really wants to pull straight. Choices for me if detune the engine or fit a front selectable locker.

Originally Posted by Vern

I find it worse now as I have ramped up the power, when you sink the boot it really wants to pull straight. Choices for me if detune the engine or fit a front selectable locker.

Have ATB's front and back and the BAS 170 tune. The front diff was noticeable initially, but soon got used to it, well worth any small driving adjustment needed for the benefit of the diff IMO.

Hmm maybe mine now is more pronounced since installing the centre one. It had been a long time between drives, but i don't remember it being this bad before the centre atb was fitted

Originally Posted by Vern

I find it worse now as I have ramped up the power, when you sink the boot it really wants to pull straight. Choices for me if detune the engine or fit a front selectable locker.

Fit 1.003 gears and 37" tyres.That will slow its gallop

Originally Posted by Vern

Hmm maybe mine now is more pronounced since installing the centre one. It had been a long time between drives, but i don't remember it being this bad before the centre atb was fitted

The three ATB's in mine don't seem to do this. It's a 130 though, so maybe it behaves a bit differently to 90's & 110's.
I don't tend to plant my right foot unless it's pointing fairly straight either.

The brilliant thing about them, unlike a difflock, is that they're down there earning their keep 100% of the time. Great when you're using it for work and towing/carrying heavy loads on different surfaces and making tight manouevers at the same time.

Ok what oil is everyone running in their atb diffs and transfer cases?

Originally Posted by Vern

I find it worse now as I have ramped up the power, when you sink the boot it really wants to pull straight. Choices for me if detune the engine or fit a front selectable locker.

I have ATB's front and rear and the BAS 170hp tune. There is a subtle tendency to self centre the steering, but it is subtle, not really noticible if holding a line.

Where I notice it mostly is in a decreasing, or increasing, radius turn - I notice that it takes slightly more effort to turn the steering wheel towards tightening the turn. Slightly less effort to turn the steering wheel out of the turn towards centred.

Certainly the difference in steering effort between decreasing/increasing turn radius is more pronounced when the loud pedal is on the floor.

You might be onto something asking about diff oils used. I have been using Penrite Pro Gear 75W-90

Put one in the transfer case and tell me if it gets worse