8.25 Power Question

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321Scamp

321Scamp

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Hey guys. I been looking, and if it has been asked before i am sorry, but what kind of power can a 8.25 withstand?

I am looking into possibly building a mild 360. I have new gears and a sure grip for my current 8.25 set up and i would hate to have to switch rear ends and never get to use my new gear set. This would not be a drag car, just a cruiser but want to still have the ability to get with it when i feel like it.

Thanks
 
I had the stock 8 1/4 s.g switched 3.23,s for 4.10,s in my 73 Dart Sport 340,4 speed.(was about 325hp)held no problem.Then I upped HP to 452hp,took it to the track and snapped an axel at launch!Scarey stuff,luckilly no damage.I now have an 8 3/4 s.g with 4.10,s.I think if you want peace of mind with your 8 1/4 you can put C-clip retainers on it,this will keep your axel from walking out if snappage.Here,s pics of snapped axel from 8 1/4.

Picture 010.jpg
 
70Swinger510 said:
still got that 81/4 gear set? :p
Click to expand...


yea, 3.55 ring and pinon. Mopar sure grip unit. Install kit (new bearings, seals, bolts) I guess the up side to it is, my brother has two trucks with 8.25's so they wouldn't go to waste. I can get an A body 8.75 pretty cheap.
 
Where can I get these C-clip retainers?
 
From what I've read the 8.25 has stronger axles and the housing itself doesn't flex as easy as the 8.75.
 
I don't know about a stranger axle, but the housing is of a very different construction. I think the biggest weak point is the physical limitation of the ring gear size.

Moser, Strange, Yukon and other company's do make upgraded axles for this rear end.
 
70Swinger510 said:
don't want to sell that 8 1/4 kit do you? :p
Click to expand...

I think i will hang on to it for right now. But if i do end up selling them, i will let you know.


The set up i am looking towards will make some where around 350 hp. If i can hang on to my 8.25, that would be great. But i do know where i can get an A body 8.75
 
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