What causes a rear end to whine?

A “howl or whine” during acceleration over a small or large speedrange is usually caused by worn ring and pinion gears or improper gear set up. “Rumbling or whirring” at speeds over 20 mph can be caused by worn carrier bearings. The noise may change while cornering or turning.

What is Hilux called in USA?

Toyota Pickup

Toyota Hilux
Also called Toyota Pickup (United States)
Production March 1968 – present
Body and chassis
Class Compact pickup truck (1968–2004) Mid-size pickup truck (2004–present)

Why does my Toyota Hilux make a whining noise?

I seem to have a whining noise that appears to come from the rear of the vehicle. The noise only seems present after a lengthy amount of driving (ie approx 1+ hours) including some freeway driving. I have recently had new tyres fitted (budget brand) and also have recently had a rear axle seal replaced.

What should I do about my Hilux clunking noise?

There should be a spacer on the bottom and top pin where the shocks fit, it should fit the side nearest to the chassis on the top and at the bottom in the inside, should be about 2-3mm spacer (thick washer). 2nd the front leafspring bush could be worn. 3rd the shocks bushes could be worn.

What is the code for the diff on a Hilux?

The code for the diff is A01A. Have checked oil level and it seems fine however have read that incorrect oil type could cause such noise. Unsure if this is an open diff or a LSD. Also can anyone tell me what oil i should use in this diff. Any help would be appreciated.

Is there a load on a Toyota Hilux?

There is no load on the car but people (dont do any towing never really have). Only just noticed noise recently. Travelling under 100km/hr. However just finished a drive on the freeway at around the 100km/hr mark. As for drivng technique pretty mild. Generally use the car for driving around town, doesnt see much action.