Question About GT500 Driveshaft Fitment on GT

[Windy_3V]

Hey everybody,

My factory driveshaft finally gave out after 212k miles about a week ago on my ‘07 GT 5-Speed. I bought another used 2-piece driveshaft from my buddy and installed it but it has an interesting problem. It fit ok and the install was relatively uneventful but I was pretty upset when I let out the clutch and it didn’t go anywhere lol. After looking under the car I saw the front half of the driveshaft from the transmission back was spinning but from the CV joint back it wasn’t.

I started looking around and realized the part numbers didn’t match my factory driveshaft, come to find out, the driveshaft I installed on my car is an 07-12 GT500 driveshaft. I know the GT500’s of those years came with a TR-6060 transmission which I’m sure has different dimensions than the TR-3650. The part that I’m confused about is it came off my buddy’s GT and worked perfectly fine and it worked on the GT it came off of before his.

I did measure the front half of each driveshaft from the pivot to the joint and they’re off by about an inch. I’m not too well versed on how 2-piece driveshafts work so I don’t know if that’s a big deal or not.

I guess my question is, are the GT and GT500 driveshafts known to be interchangeable? And if so, could that mean the driveshaft I got broke internally at some point in between?

Either way I already sucked it up and ordered an FRPP one-piece aluminum driveshaft that’ll be here next week. I was just curious and wanted to see if someone could answer the question as to why it worked fine on another GT but not mine so I can get some sleep lol.

 

[rocknrod]

I installed the FRPP unit on my 05 GT, fits fine.

 

[DieHarder]

Hey everybody,

My factory driveshaft finally gave out after 212k miles about a week ago on my ‘07 GT 5-Speed. I bought another used 2-piece driveshaft from my buddy and installed it but it has an interesting problem. It fit ok and the install was relatively uneventful but I was pretty upset when I let out the clutch and it didn’t go anywhere lol. After looking under the car I saw the front half of the driveshaft from the transmission back was spinning but from the CV joint back it wasn’t.

I started looking around and realized the part numbers didn’t match my factory driveshaft, come to find out, the driveshaft I installed on my car is an 07-12 GT500 driveshaft. I know the GT500’s of those years came with a TR-6060 transmission which I’m sure has different dimensions than the TR-3650. The part that I’m confused about is it came off my buddy’s GT and worked perfectly fine and it worked on the GT it came off of before his.

I did measure the front half of each driveshaft from the pivot to the joint and they’re off by about an inch. I’m not too well versed on how 2-piece driveshafts work so I don’t know if that’s a big deal or not.

I guess my question is, are the GT and GT500 driveshafts known to be interchangeable? And if so, could that mean the driveshaft I got broke internally at some point in between?

Either way I already sucked it up and ordered an FRPP one-piece aluminum driveshaft that’ll be here next week. I was just curious and wanted to see if someone could answer the question as to why it worked fine on another GT but not mine so I can get some sleep lol.

Hmmm.... Maybe the reason your buddy was selling it? Tell him to give you your money back.

 

[Forty61]

I have never looked closely at the driveshafts on these cars but I would wager if half of it is spinning and half isn't then it's probably broken. Is that pivot in the middle with the carrier bearing another splined joint?

 

[Windy_3V]

I installed the FRPP unit on my 05 GT, fits fine.

Just got mine in today. Hopefully going in this weekend. Quite the weight difference too. At the very least it’ll be easier to install lol!

 

[Windy_3V]

Hmmm.... Maybe the reason your buddy was selling it? Tell him to give you your money back.

Possibly lol

 

[Windy_3V]

I have never looked closely at the driveshafts on these cars but I would wager if half of it is spinning and half isn't then it's probably broken. Is that pivot in the middle with the carrier bearing another splined joint?

That would make sense. Like I mentioned I’m not 100% sure how these work but I might open up the joint just to see.

 

[Kev555]

Yes the standard GT shaft is splined as far as I remember. The centre Joint extends and retracts to suit movement in the rear axle like it does in most vehicles.
I'm guessing it would take a lot of force or continuous stress from burnouts etc to wring the splines? or more likely its pulled out of other at the splines as its too short to suit your setup?
Probably you will either have to buy a new one or possibly get one made cheaper at a custom driveshaft fabricator that builds them for different applications or if it works get a spacer made to go between the transmission and shaft to make it the right length?