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Author
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Topic: Questions about a V8 swap in a 66
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wvcat
Gearhead Posts: 285
From: New Cumberland,WV
Registered: May 2001
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posted 09-24-2002 10:25 PM
   
I have finally started on the 66 mustang project that will be my wifes car. As luck would have it I ended up with an extra 68 cougar sitting here. I have already stolen the 9" out of it and the stang now sports a 3:73 posi. Now I have to start on the front and that is where I need some info. First things first, the stang has no PS, PB, or any other options other than an automatic. The cougar had PS, no PB or anything else besides an automatic and has had a 351w swapped in. The plan is to swap drivetrains and sell the cat. Question 1: Can I swap the steering parts? #2 Will the motor mounts work? I should be ok on the trans mount but will the driveshafts interchange? (the yokes are different sizes on the rearends) I am going to put the 4 lug front drums on the cat to sell it and the 5 lug cougar drums on the stang until I round up a granada donor car.
Thanks in advance
John
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V8 Thumper
Gearhead Posts: 4376
From: Arizona
Registered: Dec 2001
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posted 09-25-2002 08:19 AM
Disclaimer: I'm no Cougar expert   Q1~ I don't think so (pretty sure on that)
Q2~ I don't think so (not quite so sure) The Mustang driveshaft is likely to be shorter than the Cougar, and if a 6 cyl car, it's a light driveline at that. Combo u-joints are available with different size cups to mate mis-matched yokes. Not sure I'd trust a 6 cyl driveline behind the torque of a 351W... small diamater/light gauge steel in the tube along with little  u-joints make for pretzeled drivelines 
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n2oMike
Gearhead Posts: 2395
From: Spencer, WV
Registered: Jan 2001
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posted 09-25-2002 10:12 AM
The front suspensions changed between 66 and 67 for the mustang (cougar) line. The 66 used shims to adjust caster and camber, where the 67/68 used an cam shaped eccentric. I don't know how much trouble it would be to swap a 68 suspension to a 66, but it probably won't be a straight bolt-in. But really, all you'll probably need are the spindles... and they may or may not bolt up to your existing upper and lower A-arms. Maybe someone else would know.My advice is to find an old granada in a junkyard and strip it's spindles to get disk brakes. As long as the 6cyl and V8 A-arms are the same, they will bolt right onto the the arms' ball joints. This way you'll have more modern disk brakes, and as a plus, they are easy to find parts for and cheap to work on. If you have manual steering, you'll need to use Granada outer tie rod ends. If you have power, you'll need a sleeve to use the existing mustang parts. These sleeves are available from www.mustangsteve.com Go ahead and use a Granada master cylinder and proportioning valve. (junction block the brake lines go to as they exit the master cylinder) I believe the mustangsteve site has complete instructions for the granada swap... however, you can do it much less expensively than they do. Good Luck! ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
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wvcat
Gearhead Posts: 285
From: New Cumberland,WV
Registered: May 2001
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posted 09-25-2002 05:34 PM
Thanks for the info. From looking at it I don't think the motor mounts will work and if the steering works it will have to have the same splines on the steering box so I can swap the whole works. I wasn't planning on swaping the control arms and I'm sure the springs are different heights because the shock towers are taller on the 68. It looks as though you could swap shock towers if you were so inclined. (in order to fit a bigger motor-fe into a 66 stang)
John
wvcat[This message has been edited by wvcat (edited 09-25-2002).]
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