Tail shaft failure

[Dennis Reinhart]

For those that think the stock Marauder drive shaft is safe after the cars speed limiter is removed, this might change your mind, this happened on the dyno at 130 MPH, fortunately the transmission was not damaged other than the tail shaft, and this tail shaft had the forced lube kit installed.

[-Matt-]

ouch, so what are ya going to do now? lol

[Marauderjack]

You couldn't feel it on the dyno Dennis???

[Dennis Reinhart]

You couldn't feel it on the dyno Dennis???

No Jack, I am data logging the car, watching air fuel, and a dyno run lasts less than a minute, so he got a new tail shaft and a drive shaft. I did a Chevy Avalanche years ago, we installed a SC and tuned the truck and at 120 it twisted the drive shaft in two pieces, it slung a U joint cap across the room and embedded it in the wall, that drive shaft was paper thin with foam in the middle of it, and it took out the out put shaft on that transmission, this is the first I have seen on a Marauder. But I do know the FHP had three failures prior to going the the MMDS.

[Marauderjack]

Dang!!

You need to wear a suit of armor to dyno modern junk then!!

Y'all be careful down thar!!

[ImpalaSlayer]

damn thats pretty crazy

[Benwin]

Holy ****... Was there any damage to the car (aside from the obvious mechanical damage)?

Note to self... When I get my marauder and get it S/C, make sure I get the racing transmission conversion, and a strong drive shaft...

O.o

[Glenn]

Maraudersanta (David) had the exact same situation on his '04 DTR NA MM at Team Ford a few years ago. The only mods were a FRPP shorty exhaust system and UDPs. First pull on the dyno and the trans tail shaft housing cracked. I was there and it was a distinct crack sound. Fortunately, it did not blow as bad as Dennis' did. The drive shaft was OK. Hard to understand how these things blow when you have no noticable high speed vibrations? A weak housing or factory defect?

Glenn

[Joe Walsh]

Maraudersanta (David) had the exact same situation on his '04 DTR NA MM at Team Ford a few years ago. The only mods were a FRPP shorty exhaust system and UDPs. First pull on the dyno and the trans tail shaft housing cracked. I was there and it was a distinct crack sound. Fortunately, it did not blow as bad as Dennis' did. The drive shaft was OK.
Hard to understand how these things blow when you have no noticable high speed vibrations? A weak housing or factory defect?
Glenn

And just imagine the stress involved when you can feel a driveline vibration...

[LANDY]

first of all. thanks Dennis Reinhart, for all your help and with my driveshaft at the begining of this week. and i apologize for being a p.i.t.a. about the tracking #s. well driveshaft got here yesrerday i installed it, drove it, great. finally feels like a marauder again at highway speeds. also did the j-mod, i really like the way it shifts, feels like a whole new car.
this is what happened to mine at 120mph

[lincolnpimp]

This also happened to me!!!! One tail shaft mod and a drive shaft from DR and all is well!!!!!

[ImpalaSlayer]

man i never herd of this now theres 3 of you?

[LANDY]

man i never herd of this now theres 3 of you?

it just happened to me about a week and 1/2 ago. but before that when the car was under extended warranty tailshaft seal broke 3 times and i took it to ford. (never again) dont understand why people fix the broken but not the problem thats causing it.

[LIGHTNIN1]

Thanks Dennis for warning us about this. Its one of those things you may not think about till it happens. I will check into it.

[MM2004]

Dennis,

Pics of the driveshaft?

Mike.