Sandy s car is a beater..(50 miles per day) and has a stock 225 super 6 and a 7.25 rear...

BUT is CHEAP like borscht!

We take no prisoners,,,or pictures....

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I used a "RAP" trans from an 82 Mustang 2.3L. My car had a stock aluminum bellhousing which I used as well as the stock clutch arm and throwout bearing.A stock Volare wagon driveshaft adapted to the stock Mustang slipjoint with a combination u-joint(NAPA).I used a clutch disc ( 9 1\4") from a Ford ranger and the stock Valiant pressure plate.I had the input bearing retainer machined down to fit the Valiant throwoutbearing and the bellhousing register(big hole the trans fits into)I had to do a little grinding inside the bellhousing to allow the holes to be drilled for the trans bolts(Mustang bolts through bellhousing into trans)I used Mustang bolts and then "clamped" trans to bellhousing using the stock Valiant bolt holes,total 8 bolts!,,,pretty ridgid. The tricky part was extending the trans input shaft to mimic the Valiant one,,I had an extension machined and then shrunk it onto the Mustang input shaft(heat extension,,,cool input shaft) we used some high temp Loctite to make us feel better. It is a little tricky getting the trans/bellhousing combo into the car,,,but it all fits nicely,,,my car was a 3spd originally so the trans hump is pretty small.I had to modify the trans mount and add my own "cushion mount".
You get 2 more gears,,,,1 lower than stock and 1 (OD) higher, the low gear is really low,,,with a stock super6 i can idle up a good grade in 1st,,,and do one hella burnout even with 235/60 14 BFGs. With 3,23 gears shift points are 20mph 40mph 60 mph 75 mph.
I used a Hurst shifter handle and "T" knob just for fun,,shifter ends up in the perfect spot.
Be warned RAP is a light duty box, however it weighs 15 lbs LESS than the stock 3spd.

About 35000 miles and few problems. My sons 20 + 22 drive it 50 miles to and from work each day...they are not nice to it.

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Yeah....Im the one who destroyed this rare, vintage automobile.....

There's nothing wrong with a beater. My signet gets 40 miles a day 6 days a week. Except for the trim on the sides of the fenders your valiant looks just like I want mine to look when it's done. It shines has two door and a nice stance with comfortable interior. I don't think I would take the time to polish the grille I perfer the 64 grille and that's what I have in mine. The RAP may be a light duty box but what will break first the trans or the rearend. A rare automobile is only destroyed when it is no longer drivable or repairable remember they were all built to be drove.