My wife's Charger is bleeding on my driveway. It has a tranny servo leak and a right side axle seal leak. While looking at the leak, i was thinking, if it had a real rear axle like my Bullitt, this wouldn't have happened. My brother in law's Magnum has been in the shop multiple times. They've even replaced the center section, but eventually the leak comes back.

 

I don't think it's just because IRS per se is 'bad', just that your wife's Charger was bad.
All my other cars have had IRS and never had any problems at all...maybe the design Dodge used wasn't as sophisticated as others on the market in order to reduce costs and that's where the problem really lies?
Are there problems like this on other Chargers out there, or is it a one-off...?

It's like saying "if I had no suspension at all I would have no suspension problems...because there isn't anything to go wrong"...

 

Moving to 'General Vehicle Discussion,' but will leave a link for a few days . . .

 

I've heard the Charger/Magnum/300C rear is like the New Edge Cobras - shock the stock rear ends hard enough w/more power and/or drag-style launches, something's gonna break - at least according to my co-worker who's a real old-school Mopar fan.

 

I like SRA, for normal driving theres not that significant of a difference. And it can handle alot more power

 

And the alignment's cheaper and easier.... unless the axle is screwed up.

 

IRS, in its ideal, is going to ride and handle better. The difference between the bullitt and my dads 3 series of the same era is dramatic

i think its just that the IRS in question is not as durable. and when IRS is designed for a specific output of power, it doenst take much more to bust it. My friend with the BMW M coupe was telling me, that if he used the dynan supercharger, hed HAVE to get the dynan rear end otherwise he'd explode it

the simple problem is things rarely work in their ideal range. that being said, dads BMW's axle is just fine because he isnt putting infinity torque down through it

 

Maybe that's the case with newer cars. I know a guy who studied at the same Technical School I was and he has a 87 325i w a big a$$ turbo on it and now it's pushing 430whp and hasn't busted the rear, yet. Btw, I studied there in yr 2000, and the guy still has the car. His best pass so far has been 11.3ish w serious traction problems.

 

I have no problems with my IRS in my Magnum

and we work on a lot of Ford's from Thunderbirds to Cobras that aside from someone drag racing on slicks with a lot of power have been leak/trouble free.

I've seen more bad axle bearings and leaking pinion seals & axle seals in live axles than I have seen in any IRS equipped cars....