Tailshaft Angle At A Kink- Is This A Problem?

[ausdrift]

So I go to get a wheel allignement today and the staffer points out that my swaybar is dangling around and front tyres are too low, but he also commented on the tailshaft. He mentioned something about vibrations because its a 2 piece shaft and as Ive lowered the car the shaft runs at a slight kink as its not at the same angles as Nissan designed it for. As it runs now, i get a stack of noise from the NISMO LSD, but never noticed any other noise/vibration (but thats not to say it doesnt possibly exist)

Anyone know anything about this?

He told me to go to pedders and get them to set up the suspension/shaft to sort it out, but didnt go into what that might involve.

Anyone know what they would do, and can you have a guess at cost?

thanks

[GTSBoy]

He's been licking cane toads.

[Risking]

Or sucking on them even.....

[ausdrift]

Jokes aside, I expect a CV joint like that used in the tail shaft would be fine for running at a different angle than dead straight, as thats what they are designed for. has anyone heard different or has any experience in this area, or driftshaft failure, etc?

[GTSBoy]

Let's put it this way. For conventional tailshafts with unis at each end, it is actually a BAD thing to run them in a dead straight line.

The Nissan 2 piece arrangement with uni at the back and CV in the middle will handle any minor mis-alignment that might occur.

But here's the important piece of information. You can lower an IRS Nissan until the belly is dragging in the pebbles and the driveline angle will remain exactly the same. Think about it. The diff is attached to the subframe is attached to the body. The wheels go up and down, but the diff never does. Your wheel aligning person is a moron and you should never listen to another thing he ever says.

[89CAL]

I was wondering how long it would take someone to realise this ^^^^

Take your car elsewhere

Unless he was talking about the driveshafts which from memory you want to be completely level diff to wheel when car is at full squat (Max load)

[ausdrift]

The diff is attached to the subframe is attached to the body. The wheels go up and down, but the diff never does. Your wheel aligning person is a moron and you should never listen to another thing he ever says.

Hmm, this does make very good sense. I did doubt what he said about tailshaft, as it didnt seem right to me at the time.

Im kinda surprised how uninformed regular mechanics are about modified car issues. this certainly isnt the first time ive gone in somewhere knowing more about my car than Im getting told. Everyone seems to think I have a diff problem (as my near new, pro installed Nismo diff chatters), people question my tyre choice and sus set up and its like noone takes sports cars to regular mechanics, as they are a bit illinformed and treat you with an air of superiority, often failing to listen to much to what you have to say. Im sure this is due to a high majority of moron/idiot customers (I work in customer service, they are everywhere) but im getting a bit sick of it.