3/4 ton to 1/2 ton.

[zac redding]

hello everyone, im new, i have a couple questions, what would be a good axle swap thats 5 lug for my 71 lwb? will they bolt right up? i was thinkin maybe from a 80's model truck? is that one good? thanks for your help.

[zac redding]

anyone?

[thirdstreettito]

Bump for ya

[Longhorn Man]

Do you have coils or leaf spring rear suspention?

[leddzepp]

I am going to follow this thread, as I am looking at changing a 3/4 ton to a half ton set-up...

[zac redding]

Originally Posted by Longhorn Man

Do you have coils or leaf spring rear suspention?

i forgot to look wen i went to look at the truck... wats the difference in mods?
leaf vs coils?

[Longhorn Man]

if you have coil, then a 71/72 1/2 ton 12 bolt will swap right in.
If you have leaf springs, then you need to locate a rear with the same spring pad width, or start cutting and welding

[zac redding]

Originally Posted by Longhorn Man

if you have coil, then a 71/72 1/2 ton 12 bolt will swap right in.
If you have leaf springs, then you need to locate a rear with the same spring pad width, or start cutting and welding

ok, that helps, im prayin it has coils... i dont have a welder or cuttin tool, or even access to one.

[leddzepp]

I thought all the 3/4 tons had leafs....guess some have coils too.

[LONGHAIR]

Originally Posted by leddzepp

I thought all the 3/4 tons had leafs....guess some have coils too.

The rear suspension was an optional thing in the 67-72 trucks. You could have either leaf or coil.
IIRC, coil was standard and leaf was the option on Chevys and the opposite was standard on GMC, with coils being the option.
Once you hit the 73-87 generation, the coils are gone, leaf on everything.

[Bus Ted Knuckle]

I wish all of you guys would give your 3/4 stuff to me, I want to go from half ton to 3/4!

[61superman]

i converted my 72 burb from 3/4 to 1/2 ton, all I did was get a 72 1/2 ton rear end to make it 5 lug then for the front rotors i went with the early classic (ECE) c20 to c10 dropped conversion spindle its made to take all the c20 ball joints etc. but allowing you to use a 5 lug rotors in front.

[Gray Ghost]

Never have been a fan of the 3/4 ton rear axle....you have to remove both axles to do the brakes unless you have swapped over to discs. When you don't have the tools and know how, that can get expensive!!

[zac redding]

my dad has been a mechanic for almost 30 yrs, im sure it wont be that hard for him... will i need to change drive shafts? or just axle, coils, front suspenion, 5 lug conversion, wheels???

[thirdstreettito]

Originally Posted by Bus Ted Knuckle

I wish all of you guys would give your 3/4 stuff to me, I want to go from half ton to 3/4!

I want to do it with my 72, I was thinking of just buying 3/4t springs though. But I'd rather have all of the parts.

[Longhorn Man]

yes, the drive shaft needs replaced or midified.... or a converson U-joint.

[Sinister]

Originally Posted by Gray Ghost

Never have been a fan of the 3/4 ton rear axle....you have to remove both axles to do the brakes unless you have swapped over to discs. When you don't have the tools and know how, that can get expensive!!

I had a Dana 60 in my '72 -20, don't have to pull the axles on that.

[Gray Ghost]

Guess I shoulda said 14 bolt. Never had a Dana.

[zac redding]

edited by mod, again

[zac redding]

edited by mod

[Sir Fisher]

i guess you're doing a 2wd?? i'm converting a 70 4x4 and i'm using axles from a 72; dana 44 and 12 bolt rear. 6 lug axles. good luck to you.

[61superman]

all u need is a conversion u-joint that converts a c20 to c10. i bought mine at napa. i used my stock c20 driveshaft

[kookykrispy]

Not to be a smartass, but I'm just wondering why you want to get rid of your 3/4 ton equipment? Is it so you can run 5 lug rims??

[zac redding]

haha no, i wanna make it a 1/2 ton and 5 lug. 5 lug has a better range of wheels, and 1/2 has a better variety of lowering parts... in my opinion.

[zac redding]

bump.