Does anybody here have an aluminum driveshaft with their 4.56 gears? I want to get them but I've heard roomers about the aluminum driveshaft breaking with those gears.

 

aluminum driveshaft brakeing with 4.56s? what the hell. the aluminum driveshaft is on the 2wd's right?

 

Ask HemiYellow 'bout them aluminum driveshafts...
I don't think the gears are gonna make a difference though, I mean at 70 mph I'm only taching about 400 rpm more after the gears. If 400 rpm is gonna blow the driveshaft, it was gonna go anyway...

 

so when im going 70...im around 2k rpms.....i can look at getting a little less than 2500 rpms.....ugh...damn gas mileage out the window...[:@]haha

 

with my tires....at 70 MPH im at 2000 rpms....but my mds runs more than it ever has..and I end up with good mileage......for instance...this past weekend i drove 92 miles...filled up before I hit the HWY...at 70 mph....and when I got off 92 miles later...I filled up again...it only took 4.2 gallons. it did go up and down in elevation...so like I said...my mds was running more than ever...on the downhill side of it all......

 

https://dodgeforum.com/m_680597/tm.htm This post made me think twice about getting the 4.56s at least until I get a 2 piece SRT10 driveshaft or a steel one.

 

did you get under your truck and see what your shaft is made of?

 

Ya its definitley aluminum.

 

LOL! Good times.

I've only had two trucks try to race me and win...and they were both Dodge duallies. WTF?

dinkenflicka

 

after reading that post im also doing research on it and now not thinking about going to 4.56 with my aluminum drieshaft unless i can find an alternative for not an insane amount of money