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What we call the differential includes the ring and pinion. The assembly,
or pumpkin, is what he needs.
On Sun, May 10, 2015 at 10:03 AM, <WeslakeMonza1330@aol.com> wrote:
> Not exactly!
>
> 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.
>
> 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.
>
> 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.
>
> 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.
>
> Regards
>
> Daniel
>
> PS: there are books with this stuff in...
>
> In a message dated 10/05/2015 15:51:41 GMT Daylight Time,
> spridgets@autox.team.net writes:
>
>
> 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.
>
> 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....
>
> Cheers!
> Jim
>
> On Sun, May 10, 2015 at 9:29 AM, derf via Spridgets <
> spridgets@autox.team.net> wrote:
>
>> 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.
>>
>> On Sun, May 10, 2015 at 9:22 AM, ryan.kubanoff--- via Spridgets <
>> spridgets@autox.team.net> wrote:
>>
>>> 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?
>>> Thanks
>>> Ryan
>>>
>>> ------------------------------
>>> *From: *"derf" <derf247@gmail.com>
>>> *To: *"Ryan Kubanoff" <ryan.kubanoff@comcast.net>
>>> *Cc: *"spridgets" <spridgets@autox.team.net>
>>> *Sent: *Sunday, May 10, 2015 8:39:29 AM
>>> *Subject: *Re: [Spridgets] More highway speed for a bugeye?
>>>
>>>
>>> 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.
>>>
>>> On Sun, May 10, 2015 at 5:59 AM, ryan.kubanoff--- via Spridgets <
>>> spridgets@autox.team.net> wrote:
>>>
>>>> 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?
>>>> Thanks
>>>> Ryan
>>>>
>>>
--001a113430925f175b0515bb9c72
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr">What we call the differential includes the ring and pinion=
.=C2=A0 The assembly, or pumpkin, is what he needs.=C2=A0 <br></div><div cl=
ass=3D"gmail_extra"><br><div class=3D"gmail_quote">On Sun, May 10, 2015 at =
10:03 AM, <span dir=3D"ltr"><<a href=3D"mailto:WeslakeMonza1330@aol.com=
" target=3D"_blank">WeslakeMonza1330@aol.com</a>></span> wrote:<br><bloc=
kquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #cc=
c solid;padding-left:1ex"><u></u>
<div style=3D"FONT-SIZE:10pt;FONT-FAMILY:Arial;COLOR:#000000"><font color=
=3D"#000000" face=3D"Arial" size=3D"2">
<div>Not exactly!</div>
<div>=C2=A0</div>
<div>The differential doesn't change the gearing of the rear axle.=C2=
=A0 The=20
gearing of the rear axle is down to the ring and pinion or what we call ove=
r in=20
the UK, the crownwheel and pinion.</div>
<div>=C2=A0</div>
<div>You want the ring and pinion fitted to the differential component and =
all=20
fitted together in the differential as a single large component - what I be=
lieve=20
you call the pumpkin.=C2=A0 Probably your best bet is to simply buy a good =
3.9=20
from Alan Fisher who is having a clear out.</div>
<div>=C2=A0</div>
<div>Changing the axle ratio doesn't improve the performance of the car=
it=20
simply changes the gearing. To reduce the engine rpm for any given speed in=
4th=20
gear you need to replace the 4.22 diff with the 3.9 diff or fit a 5 speed=
=20
gearbox with either.</div>
<div>=C2=A0</div>
<div>If your car is struggling to maintain 70 mph you need to understand if=
this=20
is because the engine is really revving out (might have a diff lower than a=
4.2=20
like a 4.5 or lower from a Morris Minor or whatever) or if the engine is si=
mply=20
not running well enough to get up the required revs.</div>
<div>=C2=A0</div>
<div>Regards</div>
<div>=C2=A0</div>
<div>Daniel</div>
<div>=C2=A0</div>
<div>PS: there are books with this stuff in...</div>
<div>=C2=A0</div>
<div><span class=3D"">
<div>In a message dated 10/05/2015 15:51:41 GMT Daylight Time,=20
<a href=3D"mailto:spridgets@autox.team.net"; target=3D"_blank">spridgets@aut=
ox.team.net</a> writes:</div>
</span><blockquote style=3D"PADDING-LEFT:5px;MARGIN-LEFT:5px;BORDER-LEFT:bl=
ue 2px solid"><font style=3D"BACKGROUND-COLOR:transparent" color=3D"#000000=
" face=3D"Arial" size=3D"2"><span class=3D"">
<div dir=3D"ltr">
<div><br></div>
<div>You only need the Differential which goes inside the pumpkin and rea=
r=20
axle.=C2=A0 As Derf said you want one that has 10/39 on the top of the=20
differential case but check yours first to see which you have now!=C2=A0 =
There=20
were at least 3 available. Early cars were 4.22 to 1, =C2=A0then there is=
3.9=20
to 1 and the shorter 4.22 to 1.=C2=A0 The 4.22 is great for autocross -=
=20
=C2=A0the taller geared 3.77 for highway use.=C2=A0 As was noted, the tal=
ler=20
gears are getting hard to find and usually demand a suitable hunk of=20
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=20
won't part it out, buy the whole thing.=C2=A0 You'll need help pi=
cking it up!!=20
=C2=A0 DAMHIK....</div>
<div><br></div>
<div>Cheers!</div>
<div>Jim</div></div>
</span><div class=3D"gmail_extra"><br>
<div class=3D"gmail_quote"><span class=3D"">On Sun, May 10, 2015 at 9:29 =
AM, derf via Spridgets=20
<span dir=3D"ltr"><<a title=3D"mailto:spridgets@autox.team.net"; href=
=3D"mailto:spridgets@autox.team.net"; target=3D"_blank">spridgets@autox.team=
.net</a>></span> wrote:<br>
</span><blockquote class=3D"gmail_quote" style=3D"PADDING-LEFT:1ex;MARGIN=
:0px 0px 0px 0.8ex;BORDER-LEFT:#ccc 1px solid"><span class=3D"">
<div dir=3D"ltr">I know the basics but will have to defer on the detail=
s.=C2=A0=20
This is where Frank would chime in and sort it all out.=C2=A0 There are=
=20
others who know and share, but none like him.=C2=A0 Really miss that=20
guy.=C2=A0 <br></div>
</span><span class=3D""><div>
<div>
<div class=3D"gmail_extra"><br>
<div class=3D"gmail_quote">On Sun, May 10, 2015 at 9:22 AM, ryan.kubano=
ff--- via=20
Spridgets <span dir=3D"ltr"><<a title=3D"mailto:spridgets@autox.team=
.net" href=3D"mailto:spridgets@autox.team.net"; target=3D"_blank">spridgets@=
autox.team.net</a>></span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"PADDING-LEFT:1ex;MARGIN:0px =
0px 0px 0.8ex;BORDER-LEFT:#ccc 1px solid">
<div>
<div style=3D"FONT-SIZE:12pt;FONT-FAMILY:Arial;COLOR:#000000">
<div>So if I go to carlisle import show next weekend what should I be=
on=20
the lookout for or what should I avoid? =C2=A0looking for rear pumpki=
n or=20
whole rear axle? how can I tell if possible whats good and whats=20
crap?</div>
<div>Thanks=C2=A0</div>
<div>Ryan</div>
<div><br></div>
<hr>
<div style=3D"FONT-SIZE:12pt;TEXT-DECORATION:none;FONT-FAMILY:Helveti=
ca,Arial,sans-serif;FONT-WEIGHT:normal;COLOR:#000;FONT-STYLE:normal"><b>Fro=
m:=20
</b>"derf" <<a title=3D"mailto:derf247@gmail.com"; href=
=3D"mailto:derf247@gmail.com"; target=3D"_blank">derf247@gmail.com</a>><b=
r><b>To: </b>"Ryan Kubanoff"=20
<<a title=3D"mailto:ryan.kubanoff@comcast.net"; href=3D"mailto:ryan=
.kubanoff@comcast.net" target=3D"_blank">ryan.kubanoff@comcast.net</a>><=
br><b>Cc: </b>"spridgets"=20
<<a title=3D"mailto:spridgets@autox.team.net"; href=3D"mailto:sprid=
gets@autox.team.net" target=3D"_blank">spridgets@autox.team.net</a>><br>=
<b>Sent: </b>Sunday, May=20
10, 2015 8:39:29 AM<br><b>Subject: </b>Re: [Spridgets] More highway s=
peed=20
for a bugeye?=20
<div>
<div><br>
<div><br></div>
<div dir=3D"ltr">You might also look into stronger axle shafts while =
you're=20
doing rear end work.=C2=A0 Any Spridget diff chunk should fit in your=
rear=20
housing.=C2=A0 Just drop the drive shaft, pop the axles out, and swap=
the=20
chunk.=C2=A0 Diff ratios are stamped on top of the chunk.=C2=A0 "=
;10/39" is=20
3.9. IIRC "9/38" is what you would have on your 4.22.<br></=
div>
<div class=3D"gmail_extra"><br>
<div class=3D"gmail_quote">On Sun, May 10, 2015 at 5:59 AM, ryan.kuba=
noff---=20
via Spridgets <span dir=3D"ltr"><<a title=3D"mailto:spridgets@auto=
x.team.net" href=3D"mailto:spridgets@autox.team.net"; target=3D"_blank">spri=
dgets@autox.team.net</a>></span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"PADDING-LEFT:1ex;MARGIN:0p=
x 0px 0px 0.8ex;BORDER-LEFT:#ccc 1px solid">
<div>
<div style=3D"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=20
will do 70+ on a highway no problem.=C2=A0 Last year I bought a 60=
=20
bugeye that was modiifed by the previous owner to have a 998 cc mot=
or,=20
rib case =C2=A0and a stock bugeye rear.=C2=A0 It has more trouble w=
ith=20
highway speeds.=C2=A0 Could I swap out the stock bugeye rear for a =
late=20
model midgets?=C2=A0 Would that improve performance?</div>
<div>Thanks</div><span><span style=3D"COLOR:#888888" color=3D"#8888=
88">
<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><br></div>
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spridgets@autox.team.net
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