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Evening folks

Have an issue when turning left there is a rumbling noise starts off below gearbox (Invincible 200 Auto) & then ends up at left rear wheel, on reversing HiLux with a trailer attached noticed left wheel locking up, hoping it’s a bearing but sounds more serious possibly a diff issue, doesn’t happen when turning right. any thoughts or advice much appreciated. 
 

Cheers

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Could be the diff, possibly the carrier bearings on the rear passenger side inside the diff, even the rear left wheel bearing, or U joints. When you turn hard right the differential disengages the rear outer wheel as it needs to travel faster than the inner wheel, and all drive is directed to the slower moving inner wheel (that's how diffs work). When turning hard left the inner rear left wheel is being powered and so the axle is under load, wheel bearing too. U joints also give you weird noises, especially in reverse and if failing they seem to get noisey at a certain speed when driving. 

Start by inspecting your tailshaft U joints at both the transmission and differential ends for play. Google that for how to. If they seem fine then jack up the rear left wheel only and ensure wheel bearings are not loose. Rotate it to see if any noise from diff, if any at all. Then lower and jack up drivers rear wheel. Rotate it and listen for diff noise or resistance that appears to be different from the other wheel being rotate. If any diff noise its time to drop the Oil from the rear diff and inspect for any contaminants like bits of metal. That will tell you immediately if a bearing has failed, or worse like a crown and pinion issue.

Hope this helps, Cheers, Darrie  

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15 hours ago, Darrie said:

Could be the diff, possibly the carrier bearings on the rear passenger side inside the diff, even the rear left wheel bearing, or U joints. When you turn hard right the differential disengages the rear outer wheel as it needs to travel faster than the inner wheel, and all drive is directed to the slower moving inner wheel (that's how diffs work). When turning hard left the inner rear left wheel is being powered and so the axle is under load, wheel bearing too. U joints also give you weird noises, especially in reverse and if failing they seem to get noisey at a certain speed when driving. 

Start by inspecting your tailshaft U joints at both the transmission and differential ends for play. Google that for how to. If they seem fine then jack up the rear left wheel only and ensure wheel bearings are not loose. Rotate it to see if any noise from diff, if any at all. Then lower and jack up drivers rear wheel. Rotate it and listen for diff noise or resistance that appears to be different from the other wheel being rotate. If any diff noise its time to drop the oil from the rear diff and inspect for any contaminants like bits of metal. That will tell you immediately if a bearing has failed, or worse like a crown and pinion issue.

Hope this helps, Cheers, Darrie  

Appreciate the reply Darrie, the diff was what I had hoped it wouldn’t be but it sounds as though it is the root of the problem,jacked up left hand side rear as you indicated this morning, put in toNeutral & turned wheel, there seems to be next to no movement on driveshaft when turning wheel back & fore, wheel appeared to turn freely with occasional noise, did a road test & it wouldn’t replicate earlier issue, put in to 4 wheel drive hard over left & wheel locked up, no serviceable parts in diff I don’t think so it looks as though it will need a replacement, hadn’t read your post before we did that so might well drop Oil out of diff to see if there are bits there that shouldn’t be there. 

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