Dana 60 with upgraded slant six

66 dart 4 speed od transmission 225slant 2.92 diff 7 1/4. Plenty of pull and torque in 1st gear, take off is fine up to 30 mph with the 3.09 1st gear. It will squeal the right side 235 60 14 tire to death but The car has no balls from 2nd-4th gears. It's ok but it just lacks. The rpm's are slow to reach 4500. Heavy slow crank? But I think if the diff gear were lower, it would help. And the transmission is just not geared right. I know it's a truck,van transmission but its now a 66 dart transmission and I want this thing to scoot a little bit better.
It's not a higway car. Just a light to light around town car.

Here are some options I was considering.

68 B body 489 8 3/4 2.76 open gear with brakes. $650
It will need shortened. Dr. Diff axles with bearings $305. Housing ends $85 and perches $15. Cut the driveshaft $200. Ujoint $50 and
get it all welded $300-$500? So $1500-$1800. And the 2.76 would need to be changed to a 3.55 $200 and possibly a spool $100 and install kit $100.
$2200 approximate.



I also found a dana 60 already modded for a 70 nova with drum brakes. $500 has 4.10 posi Probably too much gear for my transmission.
It will need shortened. Will need Dr. diff axles $305, housing ends $85, perches $15, driveshaft cut $200, joint $50, welding $500.
$1655 approximate. And if I change the gear to a 3.54 figure another $3-400. So $2000 approximate.


And I found a 68 mustang 8" 2.80 gear with brakes non posi for $150. Supposed to be a drop in. No cutting of the driveshaft. 59 1/4 axle flange to flange.
I think this will need shortened also. So Dr diff axles $305, ends $85( not sure if the 9" housing ends will work) perches $15. Ujoint $50 Welded $500. Gear/install kit/spool $500
$1600 approximate.

And there's a $1000 A body diff for sale on this forum from Colorado plus shipping I"m guessing $300?

But its a 741 with 2.94 open. So I would need another $500 for 3.55 gear and spool plus $200-$500 misc shoes,cylinders,cables,?
$2000-2300 approximate.

I think I read from another member that any way he priced it , was all about the same price. Looks like the Dana is the better build.