<table cellspacing="0" cellpadding="0" border="0"><tr><td valign="top"><p dir="ltr">Where can I get the gasket that goes between the auto unit and the differential? </p>
<p dir="ltr">Adam</p>
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Bobsnotch@aol.com <Bobsnotch@aol.com>; <br>
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<type3@vwtype3.org>; <br>
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Re: [T3] Type 3 VS Type 4 Final Drive <br>
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Wed, Jan 1, 2014 5:54:16 PM <br>
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<td valign="top">In a message dated 12/31/2013 6:05:49 P.M. Eastern Standard Time, <BR><a ymailto="mailto:jadney@vwtype3.org" href="javascript:return">jadney@vwtype3.org</a> writes:<BR> <BR>On 31 Dec 2013 at 16:28, <a ymailto="mailto:Bobsnotch@aol.com" href="javascript:return">Bobsnotch@aol.com</a> wrote:<BR><BR>> Well, checking some of the info I got from Russ, says that there were 2 <BR> <BR>> different sets of AT final drive gear ratios. A 411 (sedan) got the same <BR> <BR>> 3.67:1 that the type 3 got. The 461 (wagon) got the 3.91:1 final drive <BR>ratio. <BR>> The 411 is marked ED, while the 461 is marked EC (how you tell the <BR>difference <BR>> between the 2). <BR><BR>Okay, here's what I find in my latest "Without Guesswork."<BR><BR>Type 3: 9:33 (3.67) transmission marked EB<BR><BR>Type 4 (both bodies): 11:43 (3.91) up thru July
'73 marked EG or EH<BR><BR>Type 4 1700 sedan: 11:41 (3.72) from Aug '73<BR><BR>Type 4 1700 wagon: 11:43 (3.91) from Aug '73<BR><BR>Type 4 1800 both bodies: 11:43 (3.91) from Nov '73<BR><BR>or, viewed a different way:<BR><BR>EB: 9:33 (3.67) used on Type 3s<BR><BR>My book doesn't mention the ED, but I'll bet that's the later Type 3 <BR>version introduced in Aug '71.<BR><BR>EG: 11:43 (3.91) used on Type 4 1700s up to July '71<BR><BR>EH: 11:43 (3.91) used on Type 4 1700s Jul '71-on<BR><BR>EK: 11:41 (3.72) used on Type 4 1700 sedans from Jan '73<BR><BR>EM: 11:43 (3.91) used on Type 4 1800s<BR><BR>I believe the E? is a prefix to a serial number that's stamped <BR>somewhere on the lower side of the case, so it will somewhat hard to <BR>find. I don't remember where to tell you to look for it.<BR><BR>The book implies that all of these gearsets were made by Gleason.<BR><BR>I agree that
changing the output drive flanges is probably the way to <BR>go. That should be a direct swap, but don't forget to install the <BR>seal covers over the top of the Allen bolts that hold those flanges <BR>in place. If those are not sealed, gear oil will come out there and <BR>wash the grease out of the CV joints, making a mess and leaving the <BR>final drive low on gear oil.<BR><BR>Swapping gearsets is a much bigger deal. It sounds interesting, but <BR>may require special tools and a lot of care to get a quiet and long <BR>running adjustment. Still, you should study the process carefully and <BR>consider it.<BR><BR>Happy New Year, Everyone!!!<BR> <BR> <BR>Happy New Year to everyone!!<BR> <BR>Jim, I got the info off the disc Russ made for me. You should have a copy <BR>of it from Marilyn, that she gave you at the 2012 Invasion (it's in PDF <BR>form).<BR>In the Automatic Transmission section, is
where I found the info (section <BR>H 4.2 AT page 1-14), supplement 10. It's a nice chart. : )<BR>In it, it calls out the trans number is stamped right on the flat ledge <BR>above the fill plug for the diff (page 1-13). <BR>Also called out are engine codes for the t-3 trans under the "U" <BR>designation, and the EB prefix for the 003 300 035 A, and EJ prefix with an H <BR>suffix, but they also call out an "E" suffix for California only, from Aug 71 on <BR>(with "X" as the engine designation, and an EJ prefix). Note, this is also <BR>the same year that VW changed the vacuum modulator unit. But what surprised <BR>me, was the govenor unit had the same part number for all but the bus <BR>trans (part number 003 325 041).<BR>The T-4 also got it's own "California only" trans with the designation of <BR>003 300 035 F (EG was standard, but EH was Cal only) from 71 on. <BR> <BR>All of that said, I believe the
early ED t-4 transmissions were used in <BR>Europe with carb engines from 68 to 70, and when VW started offering the Fuel <BR>Injection on them, along with importing the Type 4 (411/412) to the USA, <BR>they changed the final drive gearing to 3.91:1 (8-70). It used engine code <BR>"W".<BR> <BR>The EB type 3 trans was up thru 8-71 (003 300 035 A), then was replaced <BR>with the EJ trans in 8-71 (003 300 035 H). <BR> <BR>I hope this helps, and maybe fills in a couple of gaps. <BR><BR>Bob 65 Notch S w/Sunroof and IRS aka Krusty<BR>64 T-34 Ghia aka Wolfie<BR>71 Square-vert under construction<BR><BR><BR>-------------- next part --------------<BR>An HTML attachment was scrubbed...<BR>URL: <<a href="http://lists.vwtype3.org/pipermail/type3-vwtype3.org/attachments/20140101/c67dc2ad/attachment.htm" target=_blank
>http://lists.vwtype3.org/pipermail/type3-vwtype3.org/attachments/20140101/c67dc2ad/attachment.htm</a>><BR>_______________________________________________<BR>VWType3.Org mailing list - <a ymailto="mailto:type3@vwtype3.org" href="javascript:return">type3@vwtype3.org</a><BR><a href="http://lists.vwtype3.org/listinfo.cgi/type3-vwtype3.org" target=_blank >http://lists.vwtype3.org/listinfo.cgi/type3-vwtype3.org</a><BR>Contact <a ymailto="mailto:gregm@vwtype3.org" href="javascript:return">gregm@vwtype3.org</a> if you need help with the list.<BR></td>
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