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Old 09-20-2007, 06:47 PM   #1 (permalink)
wjr
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14 bolt 9.5'' sf

i've got an 83 1/2 ton chevy and i've got an sf 14 bolt i took out of a 82 or 83 hd 4x4 and i want to put the 6 lug axles because i already have wheels on my truck.but what i'm finding on the pages that i've went to is for the 88-98 gm 14 9.5'' sf.whats the difference between mine and the 88-98's?and what would be the solution for 6 lug brake drums for this rearend? any help or guidance appreciated.
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Old 09-20-2007, 07:11 PM   #2 (permalink)
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Let's see. I'm guessing you have a 8 lug rear end?
If so you need to look into getting some 6 lug axle shafts. Lots can change in different years. Widths for the housings changed (couldn't tell you which years) and there are different widths for 2wd, 4x4, and I think vans. Anyways, pull your shafts and measure them. Look online to see what length replacements are available. This will help you narrow down your search. Another thing you can do is go to disc brakes and eliminate a lot of hunting and cost, I am assuming you don't have drums with the rear end.
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Old 09-21-2007, 02:26 PM   #3 (permalink)
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yes it is 8 lug and i do have the drums with this rearend.and i appreciate the advice,but been working alot of hours rightnow and just thought that some have different specs for the older 9.5 out of the 82 hd 4x4 right off the top of thier head.yes i will pull the axles when i get some free time that i know would be the best way to eliminate questions. thanks
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Old 09-21-2007, 05:02 PM   #4 (permalink)
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How about this, if u are going to spend money on shafts, why not pull the eight-lug shafts, take them to a machine shop and have them redrilled for 6-lug. Not sure on how cost affective this would be as opposed to just replacing them. But if there isn't a 6- lug match for your length shaft, maybe this would be cheaper then having a custom length shaft made. U would still have the issue with the brakes. The eight lug brakes are bigger than the 6-lug stuff so just swapping the drums wouldn't work, or this is what I found when dealing with this axle. Maybe disc's would be in order.
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Old 09-21-2007, 09:35 PM   #5 (permalink)
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The brakes are bigger on the 8 lugs? Why? I think they are the same.
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Old 09-21-2007, 10:13 PM   #6 (permalink)
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Maybe just model year differences. When I bought a 14 Sf 6-lug for $40 from under a light duty 2-wheel drive 2500 it was missing a drum. I went to my local J/Y and scrounged a while for a drum. All he had was 8-lug stuff, 80's and 90's models and the drums I looked at were bigger than mine. Also the 2wd 6-lug was 3-4 inches shorter than my 4-wheel drive 10 bolt, pretty sure it is the same for the 4wd 14's, not positive.
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Old 09-22-2007, 12:05 PM   #7 (permalink)
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Yeah I know the 2wd's are shorter, that's what I have. I had to get my drums from the the junkyard and all the guy said was they're over there. He pointed to a pile of rusty drums. Most had the same ID but some were huge on the outside. Some had big cool fins, some had notches machined in them and some looked deeper than others but they all had the same ID and brake pad width.

Maybe that was unique to that pile though.
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Old 09-22-2007, 10:33 PM   #8 (permalink)
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just have the axle redrilled at a machine shop and then before you put your new studs in set the axle down inside the drum spray it with some spray paint the drill the drums yourself. i did this to a sf d60 so it would still match my 6 lug d44 in the front.
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