Has any one had a stock drive shaft fail due to high speed and
not u-joint problems?
I replaced one that was spinning inside itself, and would rattle when you shook it. I thought the tranny was slipping in 2nd and 3rd at wot, lol.
The other one that was bad had a bad ujoint that didn't really show until I had it off the car.
The third one was replaced before any issues could show up.
The vibration and failure is mostly due to running interstate speeds for long periods, it seems to me.
I drive my cars on a 45 miles each way commute, and our interstate runs fast at times.
To the OP:
Brakes are a good upgrade; I just bought a set of powder coated PBR's for ~$100 with core.
Search thru the basic stuff; you have a 20 year old car now; they need all the rubber stuff replaced, bushings, ball joints, all kinds of stuff.
Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
Black '96 Cougar XR-7 (Lazarus) 210k mi PI Intake, '02 4R70W, Jmod, PST DS, GrogTune, Konis, Mark LCA+Poly, racecougar Custom Engine Chain, and JL and racecougar Bracing.
Black '97 Tbird Limited Edition, '02 4R70W, 255 walbro, PST DS, PBR Brakes&SS lines, Toicko Blues & Springs, GrogTune.
I'm not Human enough to be human; but I'm trying to fit in, and I'm learning to fake it.
"Never said Hibbity..." - Brian Williams