rear end issue...
08-05-2009, 11:40 PM
#1
Staging Lane
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rear end issue...
so heres the deal i have a 1991 c1500 pickup. just got done building my 383 not even fully broke in yet and now im having rear end problems. i know, i know, the rear end is the same one that was behind the v6 so everyone is gonna tell me its shot, to weak, blah blah, but i just want everyones opinion before i start tearing it down and replacing everything. heres the deal, it started popping a little when taking off easy (have a manual trans) wasn't a bad pop just a small one but noticable (has a new UV joint). today i got it out and was riding around with some friends and it popped a couple of times and now when driving it makes a loud winding sound (simular to a car driving fast in reverse). Now my thought it the gears aren't meshing right and something has gave out to make this happen. I plan on tearing it down tomorrow afternoon and see what i find. But any chance this could me a bearing or an axle or hopefully not the pinion? Or is it just simply the gears in the rear end are worn out? Its a 10 bolt open diff (i want a possi anyways so this would be a good time to get one). So, what is everyones opinion on the issue? Thanks guys
08-06-2009, 01:28 PM
#4
Teching In
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You can make any rearend last, it just depends on how you drive it. You could beef up a 10 bolt to handle cruise-in drives and the occasional throttle jab or shot down the track. Just stay away from any type of slick, hard hooks, or high rpm launches. Being that you have a manual trans, you are loading and unloading the ring n pinion with each **** most times. With an automatic there is constant pressure. Id throw a nice ring n pinion in, some nice axles and c-clip eliminators and go with it.
Because the 12 bolts out there under our trucks are a dime a dozen, itd be worth putting a good one under. Alot of trucks that are being parted out now could give you instant relief of this issue and get you some time before a good rebuild is in order. I am looking into a 12 bolt for my 83 C10. Im not gonna run the **** out of it with slicks. Itll be a cruiser and semi dd.
Because the 12 bolts out there under our trucks are a dime a dozen, itd be worth putting a good one under. Alot of trucks that are being parted out now could give you instant relief of this issue and get you some time before a good rebuild is in order. I am looking into a 12 bolt for my 83 C10. Im not gonna run the **** out of it with slicks. Itll be a cruiser and semi dd.
08-06-2009, 08:13 PM
#5
You could re-build the 10 bolt but you won't know how bad it is till you get in there...
Best option would be a 14 bolt 9.5 SF rear end from a heavy 1/2 ton, light duty 3/4 ton 88-98 pick up. if its 2wd it will be the 64.5 wms-wms and if its 4x4 it will be the 67.5 wms-wms.
Haven't seen a 12 bolt for the 88-99 style pick ups and I wouldn't waste the time trying to make a 12 bolt fit.
Best option would be a 14 bolt 9.5 SF rear end from a heavy 1/2 ton, light duty 3/4 ton 88-98 pick up. if its 2wd it will be the 64.5 wms-wms and if its 4x4 it will be the 67.5 wms-wms.
Haven't seen a 12 bolt for the 88-99 style pick ups and I wouldn't waste the time trying to make a 12 bolt fit.
08-06-2009, 11:05 PM
#6
Staging Lane
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i will definately look into the 14 bolt. would it be a direct bolt on? if so it will deffinately save me a lot of time and prolly money too. are these posi tracs or open?
