64 barracuda rear axle questions.

[LennieB]

so I recently bought but havent taken delivery of a 64 barracuda, it has a 408 stroker but the original 7-1/4 rear end.
so here's my questions:
I know I need a new rear end that can handle the power and I have a 63 imperial in my backyard with a 8-3/4 that I could have narrowed but im wondering if its worth the time or if I should just save up for a dana 60 (or strange 60)?
I've read that installing a dana 60 will require modification to the gas tank which makes me somewhat wary, could anyone point me toward a picture or description of the modification?

The car won't see the track but I do want it to be reliable enough that I can drive it without worrying about breaking parts and getting stranded.

Coincidentally the imperial is free if someone in the sacramento ca area wants it with the rear end.

 

[Cranky]

How much horsepower and are you going to launch at 6500 rpm with a stick?

 

[LennieB]

468hp at 5200 rpm and no I dont have any plans to launch that high, rear tires are 205/70s but Im gonna go bigger. Im mostly worried about dropping the clutch at 3500 and blowing things up in the back.

 

[bb66cuda]

If you’re interested in having an 8 3/4 narrowed let me know, I’ve done many of them and in San Jose. The 63 is probably a tapered axle rear which is not the way to go, you would want the later style drums.

 

[LennieB]

Thanks for the offer! Bummer my imperial cant be used.

 

[64mopar]

An 8.75 will hold up fine.
Avoid drag race hard launches and it will last.
The 9.75 is heavy and will use up some power.

 

[MadScientistMat]

Agreed, no need for a Dana 60. An 8 3/4" will be plenty.