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8" rear swap in a 61 falcon

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Nathan289
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Location: Deer Park, Wa

8" rear swap in a 61 falcon

Post #1 by Nathan289 » Mon Dec 10, 2007 4:00 pm

Hi guys,

I have a 61 falcon and want to swap an 8" rear in it.
I have the stock 170 and 3ott.

What can a person use for mating the drive shaft to the larger U-joint yolk/flange that is on the 8" rear?

I've been unable to find a conversion U-joint and was hoping there was a less expensive solution than going to the drive line shop and having a driveshaft made.

Reason for the swap is I have all the parts from a previous project to swap to 4 wheel disc brakes including cool wheels... other wise I would just do another Scarebird swap as that turned out well on the Ranchero.

Nathan
Inland Northwest Falcon Club

Bort62
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Post #2 by Bort62 » Mon Dec 10, 2007 4:23 pm

Getting the right end put on your DS isn't that expensive.

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250mav
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Post #3 by 250mav » Mon Dec 10, 2007 4:38 pm

what kinda rear do you have now? i always thought old falcons had 8's anyway?
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1976 Ford Maverick
6xCylinders+2xBarrels
~Tony M.
http://www.cardomain.com/ride/2422769

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LaGrasta
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Post #4 by LaGrasta » Mon Dec 10, 2007 5:09 pm

You'll have to have your drive shaft shortened to fit the new distance and when doing so, attach the new yoke. The one that fits the 8". It's anywhere form $75 -$150 depending on where you have it done.
1963 1/2 Falcon 170/C4/8" (alt, a/c, Petronix/42v coil/8mm wires, 16" electric fan, electric fuel pump, Holley 1940, K&N Harley air filter, power dual m/c, 11" disc, 3" drop, Shelby drop, white tuck/roll, Moon steering wheel, '59 Caddy tail lights, fishtail exhaust tip, shaved trim, handles, cowl, fuel, dash, 4" radius trunk/door corners, power windows, 600w iPod system)

grocery getter
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Post #5 by grocery getter » Mon Dec 10, 2007 6:25 pm

Nathan, check this out.
from what i've read the 61 ujoints are the same up to '68(falcons and stangs).
it looks like this guy had some luck upgrading to a 8"



http://fordsix.com/forum/viewtopic.php?t=42849&highlight=ujoint

Nathan289
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Posts: 150
Joined: Wed Oct 06, 2004 1:56 am
Location: Deer Park, Wa

Post #6 by Nathan289 » Tue Dec 11, 2007 8:13 pm

I have the stock 61 falcon rear end.
It takes a tiny U-joint one that is only an 1 7/8 from cap to cap.
the 8" rear from a 70's maverick spans much further than the stock falcon.

I'm not going to get lucky..
I guess I'll be going to the drive line shop and finding out how much they charge..

Nathan
Inland Northwest Falcon Club

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