• diff backplate + bolts

Posted: **20 Nov 2007 05:37 pm**

Looking for a 1987 340 diff backplate and bolts.

I intend to weld the diff, the haynes procedure is to remove the gearbox/diff as one but through some forum knowledge apparently i can just jack the front up and take the diff backplate off.

Unfortunitly my backplate as shown below looks like it wont survive a removal so i would like the replacement parts. Any help much appreciated

also the box+diff (ignore trolly jack its still fully connected)

Posted: **20 Nov 2007 07:16 pm**

Mac can supply new bolts and a new gasket

http://www.volvo300mania.com/forum-uk/v ... iff+gasket

As for the backplate, you'll have to find a good condition second hand one

Posted: **22 Nov 2007 01:50 pm**

I've seen worse back plates than that. I would think a new gasket and bolts would do.

Posted: **22 Nov 2007 07:34 pm**

If its being welded it wont need the diff oil.

Posted: **23 Nov 2007 01:49 pm**

NO

It will still need the oil to lubricate the gears

Posted: **23 Nov 2007 04:28 pm**

Nevesy wrote:If its being welded it wont need the diff oil.

LOL thats scary Nevesy tell me you havent done that

as dai says it still needs lubification.

Cheers
will

Posted: **23 Nov 2007 06:33 pm**

It's starting to become more obvious why lots of drifters knacker drivetrains, lol hopefully this advise hasn't hit too many targets!

Posted: **23 Nov 2007 09:50 pm**

let me just top up that diff oil, oops!

Posted: **24 Nov 2007 11:31 am**

Ok just to explain,

You have welded the diff gears up but you still the the crown wheel and pinion that need to be lubricated as the are still turning on each other to give you drive. No movment with these then no drive.

I bet your glad you mentioned that now and saved your box.

Posted: **24 Nov 2007 06:23 pm**

Yup sure am, thanks for explaining it too.