How much HP can a 7 1/4 take.. ?

[grassy]

I have someone who wants to buy my old rear end that I swapped out of my '75 duster. It will be for a /6 in a 70's d-100. I don't want to sell anything if I don't think it wil work in his application...anyone know what would be in the d-100 now ?

Thanks
ian.

 

[mikedevore]

Not much over a 14HP Briggs & Straton.

 

[mopardude318]

a slant 6 could bust it...

 

[fishy68]

Won't last long at all in a truck. The truck probably has a 8-3/4 or 9-1/4. A Duster's rearend will be way to narrow for a truck anyway.

 

[OwdKasd]

If he's gonna beat the heck out of it, It may fail. Under normal use it'll last just fine Unless it's already 1/2 wiped out and making whining noises. So it's not as good as an 8.25 or 8.75. They still went 100,000 miles over and over again year after year. JMO

 

[blackbomber]

He might need to lengthen the driveshaft. Doesn't seem worth it to me.

 

[kt340sport]

Hardly worth the effort, to narrow ,and trying to get u joints and driveshaft setup

 

[3forty]

not much over a 14hp briggs & straton.

lol

 

[grassy]

thanks...will contact him..Ian.

 

[RustyRatRod]

Under normal use, in stock slant 6 cars they had failure rates. What's that tell you?

 

[MILO]

Around here most of the 7 1/4 s are used up they use them for garden tractors built up for pulling at the local fair grounds they seem to be the favorite and work well.

 

[1968FormulaS340]

They were barely adequate for the car's they were designed for.

 

[needsaresto]

Very weak rear. I heard they do get significantly stronger when equiped with sure grip?