Differnetial confusion

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Differnetial confusion

Postby Joe Schlosser » Mon Aug 25, 2014 5:27 pm

I am confused a little regarding a note on t e Moss page regarding differential parts.
I have a 60 bugeye with the 1/4 eliptcal rear end. Have been running the same 4.22 diff since I have owned the car (long time)
I have a 3.9 diff that I want to use but it needs an overhaul as the carrier spider shims are shot. I have a carried from a diff that was laying around.
I go to the MOss Page to order new bearings for the carrier. I notice that there is a big statement that gear sets that Moss sells wcannot be used in the old axle housing (1/4 eliptic)
I am confused as to what they are talking about.
Can any one fill me in?
Joe
NESCCA FP 48 (Retired)
1960 Bugeye
Joe Schlosser
948cc
 
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Joined: Sun Nov 28, 2004 2:02 pm
Location: New York

Re: Differnetial confusion

Postby Charlie Tolman » Mon Aug 25, 2014 11:56 pm

Joe,

As I understand it, there are two different carriers and/or carrier housings for the differential gears, early vs. late.

While any third member, or pumpkin, will bolt into any rear axle housing, there are internal differences, as mentioned above.

I do not have all of the details on the topic.

Charlie Tolman
Charlie Tolman
Judson Supercharged
 
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Re: Differnetial confusion

Postby Joe Schlosser » Tue Aug 26, 2014 11:17 am

Charlie
Thanks.
The issue was whether the pumpkin would fit into the quarter elliptical axle.
I know the pumpkin I am going to use will bolt into the axle but I am concerned re alignment and such.
I dont want to go breaking axles.
Joe
NESCCA FP 48 (Retired)
1960 Bugeye
Joe Schlosser
948cc
 
Posts: 123
Joined: Sun Nov 28, 2004 2:02 pm
Location: New York

Re: Differnetial confusion

Postby Charlie Tolman » Fri Aug 29, 2014 12:44 am

I have used differential third-members, or pumpkins, with 3.90, 4.22, 4.55, and 4.88:1 gears, and all fit into a quarter-elliptic axle housing on a '63 Sprite. No axle issues.
I also had a third-member with 4.625:1 gears (37/8), but I never used it.

Charlie T.
Charlie Tolman
Judson Supercharged
 
Posts: 1197
Joined: Wed Mar 01, 2006 10:36 am
Location: Minnesota


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