Questions..... Fluid in the rear diff is supposed to be a "lifetime fluid" according to>
02-03-2003, 10:48 AM
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Questions..... Fluid in the rear diff is supposed to be a "lifetime fluid" according to>
<center><img src="http://buy.snapon.com/catalog/OBJECTS/20700/20688.JPG"></center><p>Audi. Before I change it, I thought I'd get the forums take on it.
I decided to change my transaxle fluid to Redline 75w90 synthetic after an extensive search of the forum. Redline recommends MT90, but evidently some have had difficulty in the TT 6-spd with it being a bit too heavy. Believe this was mostly in colder climates. It also appeared that the MTL might be a bit "light" for street use. After reading JimTT's take on it, I decided on the 75W90 in the transaxle. This is what is recommended in the rear diff as well.
BTW.... the transaxle takes a 14mm hex key. I used a 14mm hex socket driver like the one pictured. The rear diff takes a 17mm hex. However, there isn't enough room for a 17mm socket driver. May have to shorten the shank, or buy a specialty tool.... Has anyone else changed the rear diff fluid? If so, what fluid did you use, and did you modify a hex wrench/socket, or buy a specialty tool?
Thanks.
I decided to change my transaxle fluid to Redline 75w90 synthetic after an extensive search of the forum. Redline recommends MT90, but evidently some have had difficulty in the TT 6-spd with it being a bit too heavy. Believe this was mostly in colder climates. It also appeared that the MTL might be a bit "light" for street use. After reading JimTT's take on it, I decided on the 75W90 in the transaxle. This is what is recommended in the rear diff as well.
BTW.... the transaxle takes a 14mm hex key. I used a 14mm hex socket driver like the one pictured. The rear diff takes a 17mm hex. However, there isn't enough room for a 17mm socket driver. May have to shorten the shank, or buy a specialty tool.... Has anyone else changed the rear diff fluid? If so, what fluid did you use, and did you modify a hex wrench/socket, or buy a specialty tool?
Thanks.
02-03-2003, 10:57 AM
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I loaned Mike a 17mm allen socket I had for my truck and it worked just fine.
He installed I believe the same fluid into the diff as the tranny, all according to what RedLine recommended. Not certain if it was 75w90 or MT90 though.
02-03-2003, 11:04 AM
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The 17mm I have is a single piece, that is a 1/2" drive with a 17mm end . . .
it is about 1" in total length and can't come apart. I got it for my truck to change the engine and tranny and diff oils. Have had this for about 12 years.
02-03-2003, 11:08 AM
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The $1 solution . . .
which is the only thing that would work for me.
If you live any where near "real" stores (the Checker conglomerate, I hear . . . ) you might find a real answer.
What I did: buy a 1" 10 mm bolt (these take a 17mm wrench, remember) and 2 nuts to fit - double nut on the end of the bolt.
Yes, it becomes tiresome. But less so than a $10K rebuild on the old transaxle.
ttfn
If you live any where near "real" stores (the Checker conglomerate, I hear . . . ) you might find a real answer.
What I did: buy a 1" 10 mm bolt (these take a 17mm wrench, remember) and 2 nuts to fit - double nut on the end of the bolt.
Yes, it becomes tiresome. But less so than a $10K rebuild on the old transaxle.
ttfn
02-03-2003, 11:23 AM
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I have a couple (OK several) 17mm drain tools.
I bet you could cut a hex tool (L shaped looking tool) down and use a 17mm wrench to turn it. Follow me?
Shoot me your address and I'll mail it out to you.. I have 2 (of these) so you can have one.
Shoot me your address and I'll mail it out to you.. I have 2 (of these) so you can have one.
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02-03-2003, 11:53 AM
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Another swell idea. If I had welding gear (and was trusted with it) I'd just
make my own wrench. However, fortunately for the neighbors, I don't own any welding schtuff.