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Old 08-11-2009, 17:10   #1 (permalink)
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posi rear end

are the rearends the same on the P71?? like can i take the goods out of a rearend at the junkyard and swap them in my rearend housing??
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Old 08-11-2009, 20:43   #2 (permalink)
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Re: posi rear end

All 8.8" carriers are the same. The only difference is the number of splines on the side gears & the size of the pinion shaft. Most trucks get 31 & the large shaft; most cars get 28 & small. Click my black Bronco in my sig & look thru the 8.8" Axle album.
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Old 08-12-2009, 04:14   #3 (permalink)
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Re: posi rear end

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All 8.8" carriers are the same. The only difference is the number of splines on the side gears & the size of the pinion shaft. Most trucks get 31 & the large shaft; most cars get 28 & small. Click my black Bronco in my sig & look thru the 8.8" Axle album.
thanks steve83
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Old 08-12-2009, 14:18   #4 (permalink)
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Question Re: posi rear end

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All 8.8" carriers are the same. The only difference is the number of splines on the side gears & the size of the pinion shaft. Most trucks get 31 & the large shaft; most cars get 28 & small. Click my black Bronco in my sig & look thru the 8.8" Axle album.
so then i just need to get the gears out of a P71. i dont even need the shaft (spline shaft?) that the D'shaft bolts to. just take off the 4 bolts and pull it out. well ya take the shafts out first but u get it. if i get the gears out of the one i got the drive shaft some one did most of the work for me cover is off and one half shaft has been pulled.LOL
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Old 08-12-2009, 16:26   #5 (permalink)
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Re: posi rear end

If you remove the gears from the housing, they have to have to be adjusted. If you use the whole housing you don't need to.
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Old 08-12-2009, 16:32   #6 (permalink)
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If you remove the gears from the housing, they have to have to be adjusted. If you use the whole housing you don't need to.
i have a guy who knows how to do it. i just need to get the goods and do most of the work changing them out and he will take it from there.i do know what your saying but brake lines and all the other bulldodo. blah, just swap the inside and go !!
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Old 08-12-2009, 16:35   #7 (permalink)
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Re: posi rear end

I've done both and I'd prefer the whole unit. The gears once worn in and readjusted for another housing can start whining at certain speeds.
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Old 08-13-2009, 13:54   #8 (permalink)
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Re: posi rear end

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I've done both and I'd prefer the whole unit. The gears once worn in and readjusted for another housing can start whining at certain speeds.
i will take that in to consederation. i may have found early 90's vic to take the whole rearend out of. if it will still work be older then mine??
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Old 08-13-2009, 14:43   #9 (permalink)
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Re: posi rear end

You don't have to mess with brake lines - just remove the calipers & hang them from the body while you swap the whole axle. It's MUCH better, quicker, & cheaper than installing used gears into a different housing.
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Old 08-14-2009, 14:53   #10 (permalink)
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Re: posi rear end

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You don't have to mess with brake lines - just remove the calipers & hang them from the body while you swap the whole axle. It's MUCH better, quicker, & cheaper than installing used gears into a different housing.
X2!
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