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2NDTIMEAROUND · Posted: Wed Oct 21, 2015 12:44 pm Post subject: Gear Swap

Does anyone have a recommendation of who I can check with on acquiring a "pumpkin" with 3.08 gears for the existing rear-end in my '55 car? As far as I know, it is the original rear-end and used to have 3 on the tree. I currently have 3.55's and would prefer to keep the pumpkin with gears assembled in the event I'm not pleased with the 3.08's. I'm running a 350 with a Muncie 4-speed and would like to get the RPM's down for highway driving. Right now it's turning about 2800 RPM to do 60 MPH.
I haven't had a chance to crawl under the car to verify the stampings on the rear-end.
Thanks in advance.
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"Getting older is inevitable......acting your age is a choice....I choose not to!

Larry Epperson · Bel Air Joined: 05 Dec 2006 Posts: 300 Location: Dallas

http://www.trifive.com/forums/showthread.php?t=149846
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in my Garage:

1957 Chevy BelAir
1949 Chevy Truck

Thought for the day-

Horsepower: "If a little is great, and a lot is better, then way too much is just about right

2NDTIMEAROUND · Posted: Tue Nov 24, 2015 4:30 pm Post subject:

Larry, Thanks for the connection you provided. I have acquired the differential with the 308's I was wanting from the guy you referenced and have had them serviced and refurbished and they are ready to be installed. Hopefully, this will be my "day after Thanksgiving" project this Friday. Very Happy

_________________
"Getting older is inevitable......acting your age is a choice....I choose not to!

Larry Epperson · Bel Air Joined: 05 Dec 2006 Posts: 300 Location: Dallas

Great!! Glad I was able to help
_________________
in my Garage:

1957 Chevy BelAir
1949 Chevy Truck

Thought for the day-

Horsepower: "If a little is great, and a lot is better, then way too much is just about right

2NDTIMEAROUND · Posted: Wed Dec 09, 2015 1:32 pm Post subject:

We got the 308's in a couple if weeks ago and REALLY like the outcome.
It looks like I'm now doing about 2500 RPM at 65 MPH and my speedometer is now within 3-4 MPH of actual speed. Very Happy

Now it won't hurt so bad to get on the highway.
_________________
"Getting older is inevitable......acting your age is a choice....I choose not to!

David Graves · Posted: Wed Dec 09, 2015 2:04 pm Post subject:

Got 3:08's in my Vette, makes it much more enjoyable to drive on trips and the Tremec overdrive gets that RPM to about 2000 at 65 MPH. Very Happy

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In My Garage -
'55 Bel Air Hardtop
'55 Bel Air 2dr Sedan
'56 Corvette
'67 Camaro RS
'69 Blown 427 nostalgia front engine dragster
'17 Indian Chief Vintage