SonOfaTomP
Well-Known Member
too expensive. found a nice F Body one but it was over a g. every other one i found were 8 3/4. the search continues. might see if that PA one is still up. for now i gotta fuss with a loose tilt steering column.
upgrading to a 8.25 rear end from 7.25. what to know?
- Thread starter SonOfaTomP
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AMC Diplomat
Well-Known Member
8 3/4 wouldn't hurt either. A grand for a FMJ axle is ridiculous. I hope it was completely rebuilt
Man, rebuilt ready to run rear ends average around $2,300 near me. Average core seems to be about $300-$400, your travel time or shipping cost to actually get it in your hands, a new sure grip, gear set, new brakes, gaskets/seals, a shop to build it if you can’t yourself; you’ll be up over a grand real quick.
AMC Diplomat
Well-Known Member
Every time i see an FMJ 8 1/4 they're $100 to $200 and the seller can't get rid of it
like this one i posted back in May-
8 1/4 MOPAR rear out of 80s diplomat
81/4 rear out of an 80s diplomat 200 obo looks great inside NEED GONE
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Mine came out of a farmer's barn. The deals are out there.
Yes, cores are cheap. my point was finding a rebuilt unit for $1,000 would be the deal of the month because rebuilding a core will cost you well over $1,000…but yes, you can find cores for cheap.Every time i see an FMJ 8 1/4 they're $100 to $200 and the seller can't get rid of it
like this one i posted back in May-
8 1/4 MOPAR rear out of 80s diplomat
81/4 rear out of an 80s diplomat 200 obo looks great inside NEED GONE
Mine came out of a farmer's barn. The deals are out there.
Mikes5thAve
Well-Known Member
Who's going to bother rebuilding it? If it's good run it. Someone wanting a grand for one that's not rebuilt needs to come down to realization. And if they claim it's rebuilt they'd probably mean new bearings and seals and slapping some paint on it.
If the seller wants more then a couple hundred bucks for it make sure you see it with the cover off.
If the seller wants more then a couple hundred bucks for it make sure you see it with the cover off.
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AMC Diplomat
Well-Known Member
"Core" is a relative term. This is what mine looked like inside when i got it and after i cleaned it. the diff oil wasn't that bad really.
Is a little worn? yes. who cares
Is a little worn? yes. who cares
If, if, if, but, but, but…not everyone puts used parts in unknown condition in their cars.
Point still being, a rebuilt rear end for $1,000 is a great deal because you can’t rebuild them for less.
So, in direct regard to my original replay of if the 8.25” for $1,000 is rebuilt being a good deal, that’s still a factual statement.
I swear you guys just want to see your thoughts in words sometimes.
Point still being, a rebuilt rear end for $1,000 is a great deal because you can’t rebuild them for less.
So, in direct regard to my original replay of if the 8.25” for $1,000 is rebuilt being a good deal, that’s still a factual statement.
I swear you guys just want to see your thoughts in words sometimes.
Some of us literally buy things with the plans of rebuilding it and not leaving it as is and can provide an idea of how much it costs when they need to be rebuilt. Like people who buy open 8.25 with the plan on building a sure grip rear end to replace their 7.25…I personally wouldn’t swap a blown rear end for another 37+ year old rear end without knowing it was rebuilt or already having a plan of rebuilding it. Thats just me.
Mikes5thAve
Well-Known Member
I think when it comes to used parts like these axles for most people here if it's good they run it.
If you open it up and it's clean looking with no obvious damage or signs of major wear that's not unknown condition. Chances are pretty slim for an FMJ body 8 1/4 to have issues.
I'd imagine the actual price to buy rebuilt axle is all over the place. The gears and axle shafts don't need to be replaced if they're not bad so it probably comes down to what a new sure grip section, seals and bearings?
The way so many new parts have issues these days I'd feel more comfortable using the original pin and spider gears unless they had issues.
If you open it up and it's clean looking with no obvious damage or signs of major wear that's not unknown condition. Chances are pretty slim for an FMJ body 8 1/4 to have issues.
I'd imagine the actual price to buy rebuilt axle is all over the place. The gears and axle shafts don't need to be replaced if they're not bad so it probably comes down to what a new sure grip section, seals and bearings?
The way so many new parts have issues these days I'd feel more comfortable using the original pin and spider gears unless they had issues.
AMC Diplomat
Well-Known Member
These cars stock aren't making enough power to destroy 8 1/4 rears.
When you buy a used one you can spin it and check if there's a lot of play/slop. Then pop the fill plug and look inside best ya can, tip it over and see if the fluid is mud colored, smell it, and if it passes all that, send it.
When you buy a used one you can spin it and check if there's a lot of play/slop. Then pop the fill plug and look inside best ya can, tip it over and see if the fluid is mud colored, smell it, and if it passes all that, send it.
