Rear Propshaft Problem lots of VIBRATION

After doing a test run of my 3.9 efi conversion I found a large amount of vibration coming from the rear axle and a lot of violent shaking.

Checked the handbrake housing all free and the rear axle spins freely so took the prop off to inspect and found this:





Does this mean I need a wide angle propshaft as I've realised that the metal marks is what the noise is???

Your help as always very appreciated

Looks like it.

or just worn out ujs

It's only happened since I fitted the v8, before when it was a 2.5 N/a there were no problems with it?

Tmo said:

It's only happened since I fitted the v8, before when it was a 2.5 N/a there were no problems with it?

Click to expand...

Have you changed props and flanges to suit the V8?? V8's props have wider Yokes

redhand said:

Have you changed props and flanges to suit the V8?? V8's props have wider Yokes

Click to expand...

No I havnt so do I need a v8 wide angle propshaft?

Flange wise where do I start with that?

Tmo said:

No I havnt so do I need a v8 wide angle propshaft?

Flange wise where do I start with that?

Click to expand...

It sounds very much like it. flanges are held on with a single nut which is visible when you undo the prop.

Tmo said:

No I havnt so do I need a v8 wide angle propshaft?

Flange wise where do I start with that?

Click to expand...

you dont need to worry about flanges just get wide angled props

Oh ok I know what you mean now.

Do I need to replace both front and rear James?

The only ones I can find are like £250 each cant afford that??

Tmo said:

Oh ok I know what you mean now.

Do I need to replace both front and rear James?

The only ones I can find are like £250 each cant afford that??

Click to expand...

only if they both catch

Well after going to see the helpful guys at Keith Gott it turns out a wide angle v8 rear prop is a good 2 inches longer than an n/a one so I've ordered a wide angle n/a one hoping this will solve the problem and will update once fitted

Hopefully it's just the one as they are the best part of £160 each!!!

Wide angle props haft fitted vibration all gone away!!