I would like to put an 8 1/4 surgrip rear on my 66 drag Cuda. What would be a good donor car? I not looking to do a Major rebuild on the axles etc. The motor and tranny a targeted to be a 12sec car. Also if anyone has any gear ratio reccomendations.
thanks
Frank

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Scrapple: Because a mind is a terrible thing to waste.
73 Duster - Race Car
66 Dart Wagon - DD
178" FED
82 D150
All Slant powered

A Volare or Aspen might have what you are looking for, although beware of those that have gears higher than 2.76. They have a different housing and can not be geared lower. I would check mid 70's mainly, that is before the gear ratios got ridiculoulsy tall.

If you plan on narrowing your rear, then most 1980s Dodge pickups have an 8 1/4 or 9 1/4. 250's and 350's were 8 lug models though, stay away from those.

Or you could get a 9 inch Ford. You'll never break it.

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82 D150-225/727
02 Dakota-3.9/5 speed
87 GMC C7000-8.2 Detroit Diesel/5+2

For a 12 sec car, depending on tire size, you will want a ratio of about 4.30-4.56-4.88

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225

If you get lucky to find one:

Any 1973-1976 Duster,Dart, Valiant, Dart Sport with a 10 bolt round rear cover will be a good core...if the car is OEM and has disc brakes and a 3 speed manual on the floor then it will most likely have the 8 1/4" if it's still all original.

-D.Idiot

There are several listed in car-part.com. Look for a 74 Dart with a 10-bolt rear axle.

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David Kight
'62 Valiant Signet, White
'98 Dodge Dakota
'06 Jeep Liberty

Growing older is unavoidable but growing up is strictly optional.

Thanks for all the info Guys. My Cudas are on the way here and its time to get started finding parts.
Frank

_________________
Scrapple: Because a mind is a terrible thing to waste.
73 Duster - Race Car
66 Dart Wagon - DD
178" FED
82 D150
All Slant powered

Set the car up with a Mopar 8 3/4 and you will be glad you did.
DD

Thanks Doc If I can find /afford one.
Frank

_________________
Scrapple: Because a mind is a terrible thing to waste.
73 Duster - Race Car
66 Dart Wagon - DD
178" FED
82 D150
All Slant powered

? when replacing a 7 1/4 with a 8 1/4 from an A-body the driveshaft will need to be shorten. Does anyone know how much for my Barracuda? Also is the u-joint the same for the 8 1/4?

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67Cuda,FAST EZEFI,340cu,CR=10.25,RollerCam&Rocker (XR268HR,#20-810-9)(#1622-16)(EddyRPM#60779,#7576), (MSD6AL,#6425) A904, GearVendorsOD, 8 1/4,3.55:1, ClassicAir