3/4 ton to 1/2 ton

[wannagettachevy]

What are the differences between 3/4 ton and 1/2 ton trucks? The reason i ask is that i have a 1984 8 lug suburban that i need to get drop spindles for and convert go 6 lug bolt pattern. I noticed that the c20 drop spindles are like $180 bucks more. Can i use 1/2 ton spindles and brake components? What parts would i need?


Thanks in advance!!
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[lolife99]

www.EarlyClassic.com sells a conversion (3/4-ton to 1/2-ton) spindle that is a direct bolt on to your 3/4-ton truck.
This allows the use of 1/2-ton rotors in oem 5-lug and aftermarket 6-lug.
(ECE sells the rotors also).

[wannagettachevy]

Whats the difference between a 3/4 spindle and 1/2 ton spindle?
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[lolife99]

Originally Posted by wannagettachevy

Whats the difference between a 3/4 spindle and 1/2 ton spindle?
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Different upper and lower balljoint,... and the tie rods are different.
Also,... 3/4-ton lower a-arms have a larger balljoint hole, than the half ton version.

[Ziegelsteinfaust]

Its worth the extra money for better breaking in my opinion. C10's when loaded up just feel as stable as a C20, and that's why I got one myself. Being a Suburban your a lot heavier then me.

Then you'll need a new rear axle, rims, and tires. Plus with the 2500HD, and H2 rims you have a cheap way to get 16's or 17's with decent looks. Also Centerline Wheels offers a cool variety of 8 Lugs.

If I decide to slam my truck down the road I want to keep it 8-lug for uniqueness I guess, and keep it's tow pig status.

[wannagettachevy]

Originally Posted by Ziegelsteinfaust

Its worth the extra money for better breaking in my opinion. C10's when loaded up just feel as stable as a C20, and that's why I got one myself. Being a Suburban your a lot heavier then me.

Then you'll need a new rear axle, rims, and tires. Plus with the 2500HD, and H2 rims you have a cheap way to get 16's or 17's with decent looks. Also Centerline Wheels offers a cool variety of 8 Lugs.

If I decide to slam my truck down the road I want to keep it 8-lug for uniqueness I guess, and keep it's tow pig status.

Well to make a short story long all im trying to do is use the suburban front end on my 66 c10. Im z'ing the frame on my 66 and recently discovered my xmember is bent. So i bought a burb as a parts truck for DIRT cheap. It had all the goodie I needed like a good running 350 with some nice upgardes, also had the power steering, and power disc brakes that I desired and most importantly the front clip that WAS NOT bent lol. So basically when I do my Z ill be splicing my suburban frame rails into my 66 frame. But ill need to switch that 3/4 ton 8 lug burb brake parts to 6 lug and find the according drop spindle to lay out.



How about i just worry about fitting a 6 lug rotor on my current spindle/brake setup. Possible? im trying to go about this reasonably and save some COIN!

thanks

[Ziegelsteinfaust]

It maybe be cheaper to source a-arms, spindles, and calipers at pick a part. Then get 6-lug rotor's to round out the package.

6 lugs rotors were only on 72's if I read correctly, and really rare on 73 and later.

One last thing if you section your crossmember 1.5 inches, and up to 2.5 inches if you wanna move the steering around more or use a rack. You maybe be able to lay out with out needing drop spindles.

So if we add a 1.5 inch section, to a 2.5 inch Z, figure 2 inches of air bag drop at ride height. Your at roughly 6 inch drop total, and that is before more in depth cross member section or bigger Z. Which means moving up your tans tunnel.

Add it all up, and you may very well be able to lay out on a decent sized rim/tire combo.

[Ziegelsteinfaust]

I forgot to mention you likely could just mod you A-arms from the C20 to C10 ball joint pattern.

Plus there's a guy DV8Customs on a couple of other forums who slammed, laid out, and built one hell of a 76 C10 you should check out.

[wannagettachevy]

Originally Posted by Ziegelsteinfaust

It maybe be cheaper to source a-arms, spindles, and calipers at pick a part. Then get 6-lug rotor's to round out the package.

6 lugs rotors were only on 72's if I read correctly, and really rare on 73 and later.

One last thing if you section your crossmember 1.5 inches, and up to 2.5 inches if you wanna move the steering around more or use a rack. You maybe be able to lay out with out needing drop spindles.

So if we add a 1.5 inch section, to a 2.5 inch Z, figure 2 inches of air bag drop at ride height. Your at roughly 6 inch drop total, and that is before more in depth cross member section or bigger Z. Which means moving up your tans tunnel.

Add it all up, and you may very well be able to lay out on a decent sized rim/tire combo.

yeah very good point. but ide rather stay away from sectioning the crossmember for now and focus on the z. Most importantly i need a way to get some 6 lug rotors on my 3/4 ton spindles. I cant seem to find them anywhere. Am I missing something?

[Ziegelsteinfaust]

http://67-72chevytrucks.com/vboard/s...d.php?t=322587

[wannagettachevy]

Originally Posted by Ziegelsteinfaust

http://67-72chevytrucks.com/vboard/s...d.php?t=322587

well yes but he stayed 1/2 to 1/2 ton. I need 6 lug rotors to fit my 3/4 spindles. otherwise i could use 1/2 ton drop spindles and change out my balljoints and tie rods.

[Ziegelsteinfaust]

I always thought 6 lug were C10 or C15 depending on a year, and C20 was always 8-lug.

[wannagettachevy]

will this fit on my 8 lug suburban spindles?

http://www.earlyclassic.com/catalog.aspx?ProductId=205

[Ziegelsteinfaust]

No their C10 rotors.

[wannagettachevy]

will these fit on my suburban front suspension?

http://www.performanceonline.com/71-...e-2-half-inch/

[Ziegelsteinfaust]

According to them yes.

[lolife99]

Originally Posted by wannagettachevy

well yes but he stayed 1/2 to 1/2 ton. I need 6 lug rotors to fit my 3/4 spindles. otherwise i could use 1/2 ton drop spindles and change out my balljoints and tie rods.

No.
There is no aftermarket 6-lug rotor that will fit your 3/4-ton 73-87 spindle.
The only oem 6-lug rotor require you to swap to a 88-98 spindle, ball joints and outer tie rods.

Originally Posted by wannagettachevy

will these fit on my suburban front suspension?

http://www.performanceonline.com/71-...e-2-half-inch/

Go to the link and click on the drop down box.
POL sells C20 drop spindles but they are around $400.

You would be better off using 1/2-ton lower a-arms and 1/2-ton spindles to get to 6-lug.

[wannagettachevy]

Just wondering.....Will 1/2 ton upper and lower arms fit my 3/4 ton crossmember?
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[lolife99]

Originally Posted by wannagettachevy

Just wondering.....Will 1/2 ton upper and lower arms fit my 3/4 ton crossmember?
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yes