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<DIV>Are you sure? </DIV>
<DIV> </DIV>
<DIV>If the differential includes the ring and pinion but without the
assembly/pumpkin then the pinion is a loose item because it's not fixed to
anything. The ring or crownwheel is bolted to the differential but the
pinion is bolted into the pumpkin.</DIV>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 10/05/2015 16:06:50 GMT Daylight Time, derf247@gmail.com
writes:</DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><FONT
style="BACKGROUND-COLOR: transparent" color=#000000 size=2 face=Arial>
<DIV dir=ltr>What we call the differential includes the ring and pinion.
The assembly, or pumpkin, is what he needs. <BR></DIV>
<DIV class=gmail_extra><BR>
<DIV class=gmail_quote>On Sun, May 10, 2015 at 10:03 AM, <SPAN dir=ltr><<A
title=mailto:WeslakeMonza1330@aol.com href="mailto:WeslakeMonza1330@aol.com"
target=_blank>WeslakeMonza1330@aol.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"><U></U>
<DIV style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; COLOR: #000000"><FONT
color=#000000 size=2 face=Arial>
<DIV>Not exactly!</DIV>
<DIV> </DIV>
<DIV>The differential doesn't change the gearing of the rear axle. The
gearing of the rear axle is down to the ring and pinion or what we call over
in the UK, the crownwheel and pinion.</DIV>
<DIV> </DIV>
<DIV>You want the ring and pinion fitted to the differential component and
all fitted together in the differential as a single large component - what I
believe you call the pumpkin. Probably your best bet is to simply buy
a good 3.9 from Alan Fisher who is having a clear out.</DIV>
<DIV> </DIV>
<DIV>Changing the axle ratio doesn't improve the performance of the car it
simply changes the gearing. To reduce the engine rpm for any given speed in
4th gear you need to replace the 4.22 diff with the 3.9 diff or fit a 5
speed gearbox with either.</DIV>
<DIV> </DIV>
<DIV>If your car is struggling to maintain 70 mph you need to understand if
this is because the engine is really revving out (might have a diff lower
than a 4.2 like a 4.5 or lower from a Morris Minor or whatever) or if the
engine is simply not running well enough to get up the required revs.</DIV>
<DIV> </DIV>
<DIV>Regards</DIV>
<DIV> </DIV>
<DIV>Daniel</DIV>
<DIV> </DIV>
<DIV>PS: there are books with this stuff in...</DIV>
<DIV> </DIV>
<DIV><SPAN>
<DIV>In a message dated 10/05/2015 15:51:41 GMT Daylight Time, <A
title=mailto:spridgets@autox.team.net href="mailto:spridgets@autox.team.net"
target=_blank>spridgets@autox.team.net</A> writes:</DIV></SPAN>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><FONT
style="BACKGROUND-COLOR: transparent" color=#000000 size=2
face=Arial><SPAN>
<DIV dir=ltr>
<DIV><BR></DIV>
<DIV>You only need the Differential which goes inside the pumpkin and rear
axle. As Derf said you want one that has 10/39 on the top of the
differential case but check yours first to see which you have now!
There were at least 3 available. Early cars were 4.22 to 1, then
there is 3.9 to 1 and the shorter 4.22 to 1. The 4.22 is great for
autocross - the taller geared 3.77 for highway use. As was
noted, the taller gears are getting hard to find and usually demand a
suitable hunk of cash.</DIV>
<DIV><BR></DIV>
<DIV>If you find a 3.9 or 3.77 that's inside a rear axle case and the
seller won't part it out, buy the whole thing. You'll need help
picking it up!! DAMHIK....</DIV>
<DIV><BR></DIV>
<DIV>Cheers!</DIV>
<DIV>Jim</DIV></DIV></SPAN>
<DIV class=gmail_extra><BR>
<DIV class=gmail_quote><SPAN>On Sun, May 10, 2015 at 9:29 AM, derf via
Spridgets <SPAN dir=ltr><<A title=mailto:spridgets@autox.team.net
href="mailto:spridgets@autox.team.net"
target=_blank>spridgets@autox.team.net</A>></SPAN> wrote:<BR></SPAN>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"><SPAN>
<DIV dir=ltr>I know the basics but will have to defer on the
details. This is where Frank would chime in and sort it all
out. There are others who know and share, but none like him.
Really miss that guy. <BR></DIV></SPAN><SPAN>
<DIV>
<DIV>
<DIV class=gmail_extra><BR>
<DIV class=gmail_quote>On Sun, May 10, 2015 at 9:22 AM, ryan.kubanoff---
via Spridgets <SPAN dir=ltr><<A title=mailto:spridgets@autox.team.net
href="mailto:spridgets@autox.team.net"
target=_blank>spridgets@autox.team.net</A>></SPAN> wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: Arial; COLOR: #000000">
<DIV>So if I go to carlisle import show next weekend what should I be
on the lookout for or what should I avoid? looking for rear
pumpkin or whole rear axle? how can I tell if possible whats good and
whats crap?</DIV>
<DIV>Thanks </DIV>
<DIV>Ryan</DIV>
<DIV><BR></DIV>
<HR>
<DIV
style="FONT-SIZE: 12pt; TEXT-DECORATION: none; FONT-FAMILY: Helvetica,Arial,sans-serif; FONT-WEIGHT: normal; COLOR: #000; FONT-STYLE: normal"><B>From:
</B>"derf" <<A title=mailto:derf247@gmail.com
href="mailto:derf247@gmail.com"
target=_blank>derf247@gmail.com</A>><BR><B>To: </B>"Ryan Kubanoff"
<<A title=mailto:ryan.kubanoff@comcast.net
href="mailto:ryan.kubanoff@comcast.net"
target=_blank>ryan.kubanoff@comcast.net</A>><BR><B>Cc:
</B>"spridgets" <<A title=mailto:spridgets@autox.team.net
href="mailto:spridgets@autox.team.net"
target=_blank>spridgets@autox.team.net</A>><BR><B>Sent: </B>Sunday,
May 10, 2015 8:39:29 AM<BR><B>Subject: </B>Re: [Spridgets] More
highway speed for a bugeye?
<DIV>
<DIV><BR>
<DIV><BR></DIV>
<DIV dir=ltr>You might also look into stronger axle shafts while
you're doing rear end work. Any Spridget diff chunk should fit
in your rear housing. Just drop the drive shaft, pop the axles
out, and swap the chunk. Diff ratios are stamped on top of the
chunk. "10/39" is 3.9. IIRC "9/38" is what you would have on
your 4.22.<BR></DIV>
<DIV class=gmail_extra><BR>
<DIV class=gmail_quote>On Sun, May 10, 2015 at 5:59 AM,
ryan.kubanoff--- via Spridgets <SPAN dir=ltr><<A
title=mailto:spridgets@autox.team.net
href="mailto:spridgets@autox.team.net"
target=_blank>spridgets@autox.team.net</A>></SPAN> wrote:<BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: Arial; COLOR: #000000">
<DIV>So i have a 74 midget with a 1275, rib case, and a stock rear
that will do 70+ on a highway no problem. Last year I bought a
60 bugeye that was modiifed by the previous owner to have a 998 cc
motor, rib case and a stock bugeye rear. It has more
trouble with highway speeds. Could I swap out the stock bugeye
rear for a late model midgets? Would that improve
performance?</DIV>
<DIV>Thanks</DIV><SPAN><SPAN style="COLOR: #888888" color="#888888">
<DIV>Ryan</DIV></SPAN></SPAN></DIV></DIV></BLOCKQUOTE></DIV></DIV></DIV></DIV></DIV></DIV></DIV></BLOCKQUOTE></DIV></DIV></DIV></DIV></SPAN></BLOCKQUOTE></DIV></DIV></FONT></BLOCKQUOTE></DIV></FONT></DIV></BLOCKQUOTE></DIV></DIV></FONT></BLOCKQUOTE></DIV></FONT></BODY></HTML>