i know what my stuff looks like[1/2] but i want to swap out the axles ,aside from 8 lug wheels -what would be my other needs?? for ex.new ubolts and plates? diffrent size or style e brake? stuff like that. Im trying to put some costs together--14ff 410 with very good brakes 250!
CK5
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will 3/4 ton bolt on under my 1/2 ton set up?
- Thread starter only 31s
- Start date
thebluemax
1/2 ton status
As long as the rear is out of a similar year 3/4 ton it should bolt it. You will need new ubolts,top plates from the 3/4 rear. Also the parking brakes cables changed in early to mid 80s.....84 I think. If its a.trail only truck , swap to discs?
discs --I wish
my cash is tight! but if i dont do something for my rig ill go insane-its a 90 burb,and the axles are early 80s+im sure something strange will pop up -just trying to narrow those surprises down-like perch widths and so on.Thanks for the info-Rob
my cash is tight! but if i dont do something for my rig ill go insane-its a 90 burb,and the axles are early 80s+im sure something strange will pop up -just trying to narrow those surprises down-like perch widths and so on.Thanks for the info-Rob
First, U-bolts are made to be stretched, ONCE. Its bad practice to reuse U-bolts on a rig. Second, any 1/2ton or 3/4ton square body 4x4 chevy (73-87 pickups and 73-91 blazers and burbans ) Will have axles with the correct perch width. Early 80s should have a 10 bolt, so any other 10 bolt should have the same OD axle tubes, and the spring plates can be reused. The U-joint, steering, and sway bar upfront will bolt up.
In 1979~1980 chevy changed from a dana 44 front end to a 10 bolt. They may have different axle tube diameters, and may require new plates. During that transition they went from 3/8in banjo bolts on the calipers to a 10MM banjo bolt. Thats a minor problem, because if youre truck is a 90 and you put a 1974 dana 44 under it, the calipers from your 10 bolt are a direct bolt on to the d44 backing plate.
As for the rear, if youre looking at a 3/4 ton from the same era, it may have a 14Bolt semi-floater or a 14Bolt full-floater. They will have the same perch width as long as its from a 3/4 or 1/2 ton. You'll need U-bolts and spring plates to match the given axle. 1 tons had a narrower rear frame and require moving perches for it to bolt in. Also, the shocks faced different directions. If you currently have 10 bolts, I'm assuming you do, then either a new rear drive shaft, or a conversion joint, is needed. I dont have a part number for a 14BSF axle, but the 14BFF part number is "Precision 447" E-brake may be a hassle, but if you pull the axles yourself, you could save money and be able to steal some brake parts with the axle. Its a fairly straight forward swap, and theres A LOT of help to be found here.
