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Old 05-14-2003, 03:17   #1 (permalink)
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AUIII TE50 Backlash noise

I have spoken before about the backlash noise in my manual TE50. I am not sure whether it is getting worse or I am getting more fed up. It really spoils this car. Has anyone had any success in reducing this problem. Also, the gearbox is very unfriendly until it reaches operating temp. Any additive suggestions?
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Old 05-14-2003, 03:22   #2 (permalink)
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Is the noise you refer to Rollover noise- whirring at idle with clutch out in neutral, or actual backlash- clack/clack when power on/power off?(the second one is probably hard to differentiate from the diff backlash.)
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Old 05-14-2003, 05:50   #3 (permalink)
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I am referring to the noise when power on/power off. It annoys me more than the rollover noise.
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Old 05-14-2003, 06:57   #4 (permalink)
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I to own a T3 TE50, with tremac T3650 box. Making same driveline shunt and shudder at low rpm. It's not the gearbox doing it! It's the diff. Only found this out recently from another experience T3 TE50 owner. Basically to much backlash, need to take back to FORD to reset diff. Common problem with these diff's. [commo's too]
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Old 05-14-2003, 14:21   #5 (permalink)
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Rollover noise can GENERALLY be improved by running the correct oil, and not that Syntrans crap. Having said that, if rollover and backlash are excessive the box was not shimmed up correctly when re-assembled here in Australia. This is an easy fix. If the box has to come out it is worth contemplating fitting 0.74 ratio 5th gear while it is apart.
To isolate whether it is gearbox or diff, try it in fourth gear. All the clunk you get in fourth gear is diff, if you get more in other gears, that extra portion of it is gearbox. The diffs are very easy to fix, they need to be opened up and the tolerances closed in. It is a combination of crown wheel to pinion backlash and hemisphere slop, and they generally get worse after about 2000km from new. Commodores have the same hemisphere slop, but not the C&P backlash.
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