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question on 1965 Barracuda rear end, stock #628614 03/02/10 07:59 AM 03/02/10 07:59 AM
Joined: Apr 2003 Posts: 529 MD 7 75dusted OP mopar
75dusted OP mopar 7 Joined: Apr 2003 Posts: 529 MD	On a 1965 Barracuda rear differential (factory stock) what did they come with from the factory with, was it 8 3/4? The car has a 273 motor and auto trans

Re: question on 1965 Barracuda rear end, stock [Re: 75dusted] #628615 03/02/10 08:18 AM 03/02/10 08:18 AM
Joined: Aug 2004 Posts: 8,526 Tenn. jrwoodjoe master
jrwoodjoe master Joined: Aug 2004 Posts: 8,526 Tenn.	Most have 8 1/4. Some (if not all) 66 Formula S models came with 8 3/4 but I'm not certain about the availability on 65 models. I have a dealer option packet around here somewhere for the 65 models that may have the information in it and will post if I can find it. I use to know this but haven't messed with the car in a while and have forgotten some of the spec. info. 65 Barracuda 70 Challenger

Re: question on 1965 Barracuda rear end, stock [Re: jrwoodjoe] #628616 03/02/10 09:24 AM 03/02/10 09:24 AM
Joined: Aug 2003 Posts: 11,179 Atco NJ DJVCuda I Live Here
DJVCuda I Live Here Joined: Aug 2003 Posts: 11,179 Atco NJ	the 8 1/4 was not around - it was mostly 7 1/4" rears and 8 3/4 was optional

Re: question on 1965 Barracuda rear end, stock [Re: DJVCuda] #628617 03/02/10 11:56 AM 03/02/10 11:56 AM
Joined: Jun 2006 Posts: 441 Frederick , MD G GibW340 mopar
GibW340 mopar G Joined: Jun 2006 Posts: 441 Frederick , MD	agree- 7 1/4 rear was it- near end of model run 8 3/4 rear was optional- other than a couple factory track cars- I have never seen a '65 weith an 8 3/4 rear- Has anyone seen a factory installed 8 3/4 in a '65?

Re: question on 1965 Barracuda rear end, stock [Re: GibW340] #628618 03/02/10 03:53 PM 03/02/10 03:53 PM
Joined: Jun 2006 Posts: 857 charlotte,nc pyp1000 super stock
pyp1000 super stock Joined: Jun 2006 Posts: 857 charlotte,nc	I read in an old issue of Hot Rod that the factory made 50 65 Barracuda's with 8.75 rears for Stock class racing. I have never seen one nor have I seen any documentation to back that up. The 7.25 is fine for street use. I drove and bracket raced my Barracuda with the small rear with nary a problem. Of course, I think the reason for its survival was the lack of tire grip allowed the spider gears to live.

Re: question on 1965 Barracuda rear end, stock [Re: pyp1000] #628619 03/02/10 05:53 PM 03/02/10 05:53 PM
Joined: Mar 2003 Posts: 18,678 Fresno, CA Jim_Lusk I Live Here
Jim_Lusk I Live Here Joined: Mar 2003 Posts: 18,678 Fresno, CA	Even into the 66 model year the 7-1/4 was the most common to find behind ALL a-body drivetrains. My old 66 Commando 273 four speed Barracuda had a 7-1/4. After breaking an axle (the PO had broken the other axle AND two sets of spider gears) I installed a 3.23SG 8-3/4 from a 67 Dart (273 four barrel/auto) and never looked back.

Re: question on 1965 Barracuda rear end, stock [Re: Jim_Lusk] #628620 03/02/10 08:42 PM 03/02/10 08:42 PM
Joined: Mar 2010 Posts: 1 IN F fatboymkpat member
fatboymkpat member F Joined: Mar 2010 Posts: 1 IN	Amazing! I just started a restoration on a 65 Formula S car and was going to post the question "was an 8 3/4" option available for any of the late 65's. The car has an 8 3/4" 3.23 sure grip. No build sheet was with the car but the rear end has no indication that it has been changed. Springs are 6 leaf. All factory tags on the rear end are there. Does anyone know for sure if an 8 3/4" was available?

Re: question on 1965 Barracuda rear end, stock [Re: fatboymkpat] #628621 03/02/10 08:46 PM 03/02/10 08:46 PM
Joined: Sep 2007 Posts: 14,889 up yours Supercuda About to go away
Supercuda About to go away Joined: Sep 2007 Posts: 14,889 up yours	My 65 Cuda has a 7 1/4, not the original one either. SOmewhere before I got it the axle got replaced. I have an 8 3/4 sitting in the storeroom to put in it. They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.

Re: question on 1965 Barracuda rear end, stock [Re: Supercuda] #628622 03/03/10 08:54 AM 03/03/10 08:54 AM
Joined: Aug 2004 Posts: 8,526 Tenn. jrwoodjoe master
jrwoodjoe master Joined: Aug 2004 Posts: 8,526 Tenn.	Sorry I just re-read what I typed. Guess I had 8 3/4 on the brain and meant to type 7 1/4 not 8 1/4. Thanks for correcting that for the OP guys. My car came with a 7 1/4 but now has a 8 3/4 from a 66 Formula S I found in a JY many years ago after damaging a replacement 7 1/4 in a gas pedal stomping "SHOW OFF" incident. Joe

Re: question on 1965 Barracuda rear end, stock [Re: jrwoodjoe] #628623 03/03/10 10:39 AM 03/03/10 10:39 AM
Joined: Jun 2006 Posts: 441 Frederick , MD G GibW340 mopar
GibW340 mopar G Joined: Jun 2006 Posts: 441 Frederick , MD	Unless you stay with small tires, the 7 1/4 will give up the ghost- spider gears seemed to break and even kept snapped off lug bolts with L 60 Mickeys back in the day in my 340 4 speed 65 Valiant wagon... put a B body rear in it.... The wagons had a bigger wheel well if I remember- tires stuck out abour 2 inches on each side...

Re: question on 1965 Barracuda rear end, stock [Re: Jim_Lusk] #628624 03/03/10 10:57 AM 03/03/10 10:57 AM
Joined: Aug 2006 Posts: 1,609 Southern Cal Noblewk top fuel
Noblewk top fuel Joined: Aug 2006 Posts: 1,609 Southern Cal	The earliest 8.75 in an A-Body that I have heard of would have been the D/Dart in 66. I have never seen or heard of the Valient line being toured with HD equipment. 66 Dart GT, 402 11.18:109 Best 63 1/2 Galaxie 500XL 406 4Speed 13.20:103 Best 2000 Ram 2005 Durango Hemi.

Re: question on 1965 Barracuda rear end, stock [Re: Noblewk] #628625 03/03/10 01:30 PM 03/03/10 01:30 PM
A Anonymous Unregistered
Anonymous Unregistered A	Quote: The earliest 8.75 in an A-Body that I have heard of would have been the D/Dart in 66. I have never seen or heard of the Valient line being toured with HD equipment. 65 and 66 Valiants were available with top-of-the-line A body performance options of the day, including Commando 273 V-8 and 4-speed transmission. You could still get the Commando 273 and 4-spd tranny in a 67 Valiant, but the 383 4-barrel was optional only in the Barracuda (in the Plymouth A-body line). Top engine option for 68 Valiants was the 318 2-barrel. 4-speed tranny was still available. A friend of mine inherited a 68 318 4-speed Valiant; it has an 8 3/4 rear and a ralley dash.

Re: question on 1965 Barracuda rear end, stock #628626 03/03/10 02:30 PM 03/03/10 02:30 PM
Joined: Apr 2007 Posts: 2,327 Glendale, AZ 6 69L78Nova Banned. Forever.
69L78Nova Banned. Forever. 6 Joined: Apr 2007 Posts: 2,327 Glendale, AZ	A good friend of mine has an original 65 Formula S that he has owned since new and has an 8 3/4....its a 4-speed car 1969 Nova 454/M21/3.31 Mild mid-11 second weekend cruiser 1994 F150 XLT Super Cab 2WD 5.0/4R70W/3.55 (Daily driver)

Re: question on 1965 Barracuda rear end, stock [Re: 69L78Nova] #628627 03/04/10 09:47 AM 03/04/10 09:47 AM
Joined: Jun 2006 Posts: 441 Frederick , MD G GibW340 mopar
GibW340 mopar G Joined: Jun 2006 Posts: 441 Frederick , MD	I wonder what the build date of it is-late in the year? I wonder if it had/has a Chrysler tow hitch package-bolts to bumper and trunk floor thru spare tire well?

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