<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content="text/html; charset=iso-8859-1" http-equiv=Content-Type>
<META name=GENERATOR content="MSHTML 8.00.6001.23588">
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT size=2 face=Arial>I have the one in my 73 T-3 and a spare from a 72
T-3 both have atuo trans cases and diffs and auto trans. </FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial> I was thinking of re sealing the spare 72
diff section I have . </FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial> I looed on the right side or the 72 diff at
the very bottom on the right side just ahead of the diff fill plug . Both diff
housings have the same VW # 003 507 111A same spot but on the left side as they
would set in the car. The 72 Diff section on the right side begins with 2
letters followed by numbers the 72 is an EK , the 73 in the car is an EJ.
</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial> I was trying to determine the diff final
drive gear ratio. T-3 should be 3.67 . </FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial> I found this chart </FONT></DIV>
<DIV><FONT size=2 face=Arial> </DIV>
<DIV>
<TABLE border=0 cellSpacing=1 cellPadding=3 width="90%" align=center>
<TBODY>
<TR>
<TD class=quote>Well, checking some of the info I got from Russ, says that
there were 2 <BR>different sets of AT final drive gear ratios. <BR>A 411
(sedan) got the same 3.67:1 that the type 3 got. <BR>The 461 (wagon) got
the 3.91:1 final driveratio. <BR>The 411 is marked ED, while the 461 is
marked EC (how you tell the <BR>difference 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.</TD></TR></TBODY></TABLE></DIV>
<DIV><SPAN class=postbody></SPAN> </DIV>
<DIV><SPAN class=postbody> It states the T-3 3.67 is EB can't find EJ . It
states EK as 3.72. </SPAN></DIV>
<DIV><SPAN class=postbody></SPAN> </DIV>
<DIV><SPAN class=postbody> Is there any info on the EJ ? Also without
removing the 72 EK gear set out of the case how can I determine the ratio since
I don't know if I can trust the case markings . And how would I determine what
ratio the EJ is since the diff is in the car so I cant see the pinion end ?
</SPAN></DIV>
<DIV><SPAN class=postbody></SPAN> </DIV>
<DIV><SPAN class=postbody> The EJ has always been in this car since I
bought it and it seems to be the proper ratio based on speed and in 3rd gear and
tach readings.</SPAN></DIV>
<DIV><SPAN class=postbody></SPAN> </DIV>
<DIV><SPAN class=postbody> Any help would be great. </SPAN></DIV>
<DIV><SPAN class=postbody></SPAN> </DIV>
<DIV><SPAN class=postbody>William</SPAN></FONT></DIV><br />
<table style="border-top: 1px solid #aaabb6;">
<tr>
<td style="width: 55px; padding-top: 18px;"><a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=oa-2115-v2-a" target="_blank"><img src="https://ipmcdn.avast.com/images/2016/icons/icon-envelope-tick-round-orange-v1.png" /></a></td>
<td style="width: 470px; padding-top: 20px; color: #41424e; font-size: 13px; font-family: Arial, Helvetica, sans-serif; line-height: 18px;">This email has been sent from a virus-free computer protected by Avast. <a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=oa-2115-v2-a" target="_blank" style="color: #4453ea;">www.avast.com</a>
</td>
</tr>
</table></BODY></HTML>