What can the 7.25 handle?

So this might be a bit of a weird question for you die hard Mopar guys but I have a 74 Valiant that I removed the 225 from and now have an OM617 Mercedes turbo diesel in it. My question is: will the rear end handle the motor? I am still working on a drive shaft so I haven't driven it yet but was looking for opinions. The 225 supposedly put out 105hp@3600 and 180ft-lbs@1600 whereas the diesel makes 125hp@4350 and 185ft-lbs@2400 in stock form. Will the 7.25 hold up or should I go for an 8.8 swap since I have a yard full of explorers and rangers?