Pumpkin rearend

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Apr 18, 2006 | 09:48 PM

#16

hotrod48

Elder User

Joined: Jul 2003

Posts: 895

Likes: 1

From: OK

I would say it is a Mopar 8 3/4 but I know nothing about them or Mopars. You could do a Google search for it or try to find a good Mopar site that discusses rear ends. Good luck

hotrod48

Apr 18, 2006 | 10:07 PM

#17

AXracer

Hotshot

Joined: Oct 2004

Posts: 15,882

Likes: 88

From: Durham NC

The pinion bumper says Mopar all the way. A popular swap for all the above reasons.

Apr 19, 2006 | 12:10 PM

#18

bobbytnm

Roast em' if you got 'em

Joined: Mar 2005

Posts: 21,978

Likes: 9,817

From: Rio Rancho, NM

Quote:

Originally Posted by Last Chance 55

My god, my is going to end up part ford, chevy, dodge, and olds/pontiac. I guess i need to find some caddy and buick parts next.

Starting to sound like my truck. My build sheet includes Ford, Caddy, Buick, Olds, Pontiac, Chevy, GMC, Dodge, Chrysler, Toyota and range in age from 1946 to 2000

Good luck with the truck
Bobby

Apr 19, 2006 | 12:27 PM

#19

brucewolff

Elder User

Joined: May 2004

Posts: 553

Likes: 2

From: MN - NW of Twin Cities

SOUNDS LIKE A mOPAR 8 3/4.

Apr 20, 2006 | 09:38 AM

#20

bradoemba

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Joined: Nov 2004

Posts: 115

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You can check with the folks at www.moparstyle.net

Apr 29, 2006 | 05:55 PM

#21

Last Chance 55

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Joined: Feb 2005

Posts: 125

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Okay guys, got the rearend out and the brakes unfrozen and the rearend turns. I do have some casting number if anyone out there can help me fiqure out what this rearend is or was. I appreciate any help.

casting numbers:
2070742
8APW 320

Apr 29, 2006 | 07:17 PM

#22

WillyB

Post Fiend

Joined: Sep 2004

Posts: 5,231

Likes: 1

From: Near Fresno, California

Is a chrysler 8 3/4 - see http://clubs.hemmings.com/clubsites/cowtownmopars/ChryslerRearEnd.html

easy to find, just plug in the number (2070742) into a search engine and let your computer find a match on the net.

"1-3/4" large stem pinion (aka. '742')
Carrier casting numbers: 1634985 (1957-1964), 2070742 (~1961-1969). This assembly was replaced by a phase-in of the 1-7/8" pinion starting in the 1969 model year. 1970 RW (Plymouth and Dodge mid-size) were the last models to use the 1-3/4" which appeared in a 2881489 case. This assembly was typically used in high weight/medium horsepower applications through high weight/high horsepower applications. Pinion depth and bearing preload is set with shims. Differential bearing setting (ie. backlash ) is set with threaded adjusters."

Last edited by WillyB; Apr 29, 2006 at 07:21 PM.

Apr 30, 2006 | 09:20 PM

#23

Last Chance 55

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Joined: Feb 2005

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Thanks guys for all your help. I have discovered that the rear is a 8 3/4 Mopar 742 which is the prefferred banjo stlye rear for many racers and street cars. I have yet to find what the rear exactly came of but it was a Bbody mopar from 65-69 according to the width specs. It is what mopar call a sure grip chunk and has a rebuildable clutches in the center clutches that was popular with many racers. I will probable use this rear since it was already mounted under a effie. I will leave a update later how its performance.