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AW70 vs AW71 Rear housing 700

posted by  otherdalek on  Fri Apr 8 10:58 CST 2022
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last visit: Sat Jul 6 18:14 CST 2013
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Besides the fact one has the speedo sending unit in older 240s, what is the difference in the rear housings for both transmissions?








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AW70 vs AW71 Rear housing 700

posted by  Volvo From Heck on  Sat Apr 9 13:30 CST 2022
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last visit: Mon Oct 13 20:56 CST 2014
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No one has picked this up yet - so I'll take a stab at answering your query, without having either of these trannies in front to me. I would say - there is no difference in the rear housings. The difference between the two lies in the main body of the AW-70 where there are a couple of fluid chambers with a disc looking "piston" in each. Those "pistons" are there to cushion the shifts -- made more firm with the deletion of them in the AW-71. I do not know if there are more-or different-clutches. -- Dave








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AW70 vs AW71 Rear housing 700

posted by  Nahtanha on  Thu Apr 14 15:23 CST 2022
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last visit: Tue May 20 10:10 CST 2014
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At a later time the rear housing incorporated a bearing and no longer use the bushing.








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AW70 vs AW71 Rear housing 700

uid 55's pic
posted by  john sargent on  Sun May 8 15:21 CST 2022
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last visit: Wed Oct 22 09:07 CST 2014
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1993+ model years 240 and 940.
--
john








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AW70 vs AW71 Rear housing 700

posted by  otherdalek on  Sun May 8 04:57 CST 2022
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last visit: Sat Jul 6 18:14 CST 2013
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Did that make it incompatible with the old output shaft?
And, what was gained by going to the bearing? Longer replacement intervals?








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AW70 vs AW71 Rear housing 700

posted by  Volvo From Heck on  Sun May 8 06:36 CST 2022
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last visit: Mon Oct 13 20:56 CST 2014
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As the bushing wears it causes the rear seal to leak. The bearing solved that problem. - Dave








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AW70 vs AW71 Rear housing 700

posted by  Volvo From Heck on  Fri Apr 15 14:30 CST 2022
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last visit: Mon Oct 13 20:56 CST 2014
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Good point.







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