Outside the normal differential

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Those I know have a weakness mostly with the one axle as I was told. Solid rear! but guys snap that one axle unless changed. Like 81cutlass mentioned it’s hard to find a good used one anymore. (My brother is a Mopar guru/collector/parts seller and has a yard that has made it on a Motor Trend show)
The cost of them is like the 9”. But would love to hear his input! Thank you!!
Only the early ones have that weakness. They were built with one adjustable axle very easy fix. My car has a Mopar B body rear narrowed to A body with (dart demon duster) so it uses off the shelf axels and I used Detroit axels with sealed bearings only $300 bucks but in my application I'm notching my frame a Chrysler A body rear is narrower than a G-Body rear I'm attempting a 10" tire and off offset wheels. it's all in my thread. The custom brackets on mine are actually for a Ford 9" in a G-body. One of the nice things is that my lower arms and shock mounts are now adjustable.
I think it's all in my thread
 
Only the early ones have that weakness. They were built with one adjustable axle very easy fix. My car has a Mopar B body rear narrowed to A body with (dart demon duster) so it uses off the shelf axels and I used Detroit axels with sealed bearings only $300 bucks but in my application I'm notching my frame a Chrysler A body rear is narrower than a G-Body rear I'm attempting a 10" tire and off offset wheels. it's all in my thread. The custom brackets on mine are actually for a Ford 9" in a G-body. One of the nice things is that my lower arms and shock mounts are now adjustable.
I think it's all in my thread
You ever need a setup for a blown diff he usually has two or three in the garage. And a few out in the yard. I’ll look up your thread! Thanks!
 
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I avoid the 9" ford like a plague because although it's an OK rear when built it has a lot of issues. Mainly, cost. a 9" hasn't gone into the junk yard since the late 70's and the OE gear ratio selection is poor, they are rarely the right width, they are drums, they have the wrong bolt pattern, they are inefficient, & people think used 9" parts are GOLD. Usually high volume means low price (think how many cheap LS, SBC or fox stuff there is) but used 9" center sections that are used, plentiful, and have been punished with 1000hp for 3 seasons are somehow still 80%+ of their original value. There is nothing really left of an OEM ford 9" by the time you make it useful, the used market is dumb, and they are 1956 tech.

I am also not a fan of 12 bolt A body rear ends because again, they aren't the right width, they haven't gone into a junkyard since 1972, the gear ratios are usually bad, they have drums, and you have to buy special control arms to make them fit.

The best option that is unobtainable is a 98-05 blazer 2wd with the tow package. It will be a 30 spline, disk, 3.73 or 3.42, 5x4.75 and within 1/2" of OEM G body. They are just impossible to find. If you welded on LCA brackets an bolted on an UCA adapter plate you could drop it in the car without even opening the rear.

I have looked into the Dana 60 and it's a killer option. The only negative is usually they have MASSIVE axle tube wall thicknesses and getting them assembled kinda sucks because you need a case spreader. The good? The Dana 60 came in late 90's ford E250 vans and are available with 3.73 and 4.09 gears, 35 spline axles and are PLENTIFUL for under $200. If you cut the axle tubes down and replace with a 9" torino style end with GM disk brake backing plate pattern and get a set of off-the shelf 9" 35 spline axles and throw a spool or posi in with the stock gears you got a rear that will go 8's for under $750.

Other option I am a fan of is a semi-float GM/AAM 9.5" out of a TBSS. Also 1/2 ton late GMT400 with the tow package and 6 lug. Price and availability is good, but again they need disk conversion and axles for the right bolt pattern. For TBSS they are 4.10, clutch posi, 33 spline. Worst part is for hard core drag race applications they don't have a spool available from what I have found.

I have a 8.6 center section out of a 98 Zr2 S10 with Moser 30 spline GN axles, G body tubes & a plate for the UCA's in my 2+2.
Did you fabricate or buy the the upper arm bushing bracket?
 
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Did you fabricate or buy the the upper arm bushing bracket?

I fabbed it.

I have done 3. One is on the rear in the 2+2 now, one was in the 62" wide zr2 rear that was in it and snapped a stock axle, and 1 is just plasma cut and needs holes and the ears bent.
 
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You ever need a setup for a blown diff he usually has two or three in the garage. And a few out in the yard. I’ll look up your thread! Thanks!
I actually want to change from the 4:11s I have to like 3:55s I have a 489 case the other good one is a 741 or 742 I always get them confused
Did you fabricate or buy the the upper arm bushing bracket?
Mine has a kit for a 9" modified for the Chrysler 8.75 it was built by Andy at a&d rear for a friend of mine that didn't use it
 
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I actually want to change from the 4:11s I have to like 3:55s I have a 489 case the other good one is a 741 or 742 I always get them confused

Mine has a kit for a 9" modified for the Chrysler 8.75 it was built by Andy at a&d rear for a friend of mine that didn't use it
Clutch,your only 5.5 hrs away for me (one way). My brother is always going up and down the coast to Fla. which is how I ended up with my ElCamino out of Ga.
 
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