dana 80 fitment?

[special70gmc]

ok i have a 4x4 1964 dodge 3500 single wheel truck in my back yard with a bigblock 4spd pto and a dana 80 in the rear i was gonna junk it untill i pulled the cover today to see if it had a locker (it does) i have a dana 60 in my truck ans i was wondering if i can swap rears but before i do this id like to know the ratio but of coures the tag is long gone does anybody know what ratios those this came with? if its 4:10 id really like to swap her in to the ol 70 cuz my track lock really sucks it never locks up off the line. so what im really asking is... will it fit? and how do i figure the ratio? thanks-kyle

o yeah does anybody know what the front is?

[1969 GMC]

Kyle, your Dodge should have dana 70's front and rear, although in the pics the front axle looks like a dana 44. I would just stick with your dana 60... its lighter, its already under your truck (and you know if all the brake stuff and bearings are good), and it has more splines on the axleshafts (30 vs 23). You can rebuild the power lock that is in your truck now, the clutches are most likely worn out. Also, there is a good chance that the power wagon has really low gears...like 4.56 or 4.88. Maybe you could find a Mopar guy to unload your power wagon on, and make enough money on it to rebuild your d60. My 2 cents.

EDIT: in the first pic I can see the little 80. Hmm...in that case, the d80 is even heavier than the 70. I would just leave it under the dodge.

[Rod]

I got a buddy working on a 61 Fargo..(thats a Canadian Dodge) truck..1 ton single wheel one ton 4x4. Its in need of a power wagon emblem off the hood and some other parts too.
His has a 318 wide block and it has a dana 70 front and and spicer 70 rear. Might be the same brand diffs I'm not sure. His has 4.88 gears. He dosen't have a locker I know that...so if you looking for a sale I'll let him know.

I think he will needed the drum brakes too.

How much of this truck is left you have there. I know his has a divorced transfer case also.

Need one front signal lens also.


More too but cant think of it right now.

PM if you can about parts.

Spin the gears around till you can see some numbers stamped on them...typically they have the pinion and the crown gear on them and a year....something like 9 37 64

37/9=4.11 ratio..gear set is from 1964 ..and example for ya.

Or you put a pen mark on the crown gear and count how many teeth on it as you spin it. I have books that will tell me what ratio it is probably even if I knew only the crowns tooth count. It has to match a set number.

Basically they came with these type gears between 61 and 68 in a 300 series 4x4.

39-8 = 4.88
47-8 = 5.87

[Rod]

Basically friend is looking for parts for something like this pic.. that hood emblem and that stlye front. Not sure what year went to single headlight but the basic parts still interchange.

[special70gmc]

ill sell what ever just tell me what ya need but shipping would kill, hers another pic

[Rod]

Tell me what the front badge says on the grill..is it a 200 if so is a 3/4 ton.

[Rod]

Here is a scan of the ad that my friend saw and went and bought It's a 61 Fargo 1 ton 4x4 single rear wheel tow truck.