LPE Driveshaft question
Thread Starter
Melting Slicks
Joined: Apr 2001
Posts: 2,877
Likes: 7
LPE Driveshaft question
On my way Carlisle this weekend it seems that I have picked up a vibration in the 55 to 60 mph range, It is obvisouly the driveshaft and maybe some half shaft vibration so I will have to pull both and I was thinking of upgrading to the carbon fiber shafts from Lingenfelter. Just wanted to see if anyone had any experience with these shafts or anyother shafts.
I can always get the stock balanced but I have built everything else in the rear as strong as possible with my 4.10 swap that I figure this will make it totally bullet proof
I can always get the stock balanced but I have built everything else in the rear as strong as possible with my 4.10 swap that I figure this will make it totally bullet proof
Melting Slicks
Joined: Mar 1999
Posts: 3,029
Likes: 137
From: Nashville TN area
Re: LPE Driveshaft question (Ruby6spd)
spend the money if you want, but you're probably jumping the gun.. driveshafts don't suddenly pickup vibration.. my 110k mile shafts in my '94 are smooth as can be and i've been up around 160mph.. this with 4.09 gears which is like spinning a regular car to 190mph with 3.45 gears.. (for same driveshaft rpms.. prop shafts wouldn't matter, they spin the same rpm no matter what gearing..)
first place to look would be out of balance tires.. second place would be an out of balance engine.. if it is an out of balance engine, you'd feel it as rpm related not mph related and could put the tranny in neutral and slowly bring engine rpms up to 5500 or so, holding each 500rpm for a couple seconds.. you'd feel the vibrations thru the steering wheel or gear shifter..
anyhow, chances are it's time for either new rubber or just get your wheels balance checked..
first place to look would be out of balance tires.. second place would be an out of balance engine.. if it is an out of balance engine, you'd feel it as rpm related not mph related and could put the tranny in neutral and slowly bring engine rpms up to 5500 or so, holding each 500rpm for a couple seconds.. you'd feel the vibrations thru the steering wheel or gear shifter..
anyhow, chances are it's time for either new rubber or just get your wheels balance checked..
Melting Slicks
Joined: Mar 1999
Posts: 3,029
Likes: 137
From: Nashville TN area
Re: LPE Driveshaft question (mikey)
oh another good way to help isolate the source of the vibration is to get up to your problematic speed and let the car coast with the clutch in.. this eliminates engine vibration for the most part..
Thread Starter
Melting Slicks
Joined: Apr 2001
Posts: 2,877
Likes: 7
Re: LPE Driveshaft question (mikey)
I sure hope that is not case(engine prob), I will do a few coast down from a few different gears tonight to see if it is engine/trans related. the reason that i believe it to be the shaft is that it has new u joints and all new inner and outer axles(in the hubs and the differential) as well as pinion yoke and wheel bearings...
this might be a job for the shop to trace down if i can't come up with the specific cause
this might be a job for the shop to trace down if i can't come up with the specific cause
