r200 input flange change.

[mouse240z]

Hey Guys, I  need to change the input flange on an r200. Is it just a matter of undoing the nut, tapping off the flange, tapping the new flange on and doing the nut back up the specified tension?

[Gareth. J.]

Yep, they can be very hard to break loose. I used an electric impact gun thats rated at 340nm. took half a dozen goes to break it loose 

[620Z]

Since no reply yet I will have a go at the risk of being corrected by Lurch. Ha
In a word "Yes" that flange has a spline on the end. But make sure you do it up very tight with the new one. We used a rattle gun on ours. I know I am stating the obvious there. Pretty easy job I wish they were all like that.
Cheers

[mouse240z]

Cheers Guys. That sounds easy enough.

[.]

It sounds easier than it really is. As previously mentioned they are extremely tight.

What you need to do is use WD40 a day or two before and let it soak.

Then brace the diff but grabing a really long piece of steel or something drill the holes in it to match the back of the diff and bolt that on. Then wedge the left side of it under something heavy like a 4x4 or a fence or something so it stops the diff from twisting while you undo the nut. Then you need something to stop the output shafts from spinning. I found that front radius rods do the trick. Bolt them on to the output shafts then let them spin until they hit the metal bar at now bolted to the back of the diff.....They won't spin any further.

Now you should be right to start trying to coax the nut loose....If doing it by hand you will need all your strength.....you might even need to jump on it. 

Hope this helps.

By the way does anyone have a spare input flange from an R180 they would be willing to part with?

[mouse240z]

Thanks for your input. Knowhow is a great thing.