lsd for a 340 1.7 1988 gl

Post by **massey** » 03 Apr 2007 11:33 am

hello there every one just got hold of a 340 and im goin to road rally it but i could with finding out about what lsd to use and where to get them from!! thanks

Post by **Cornholio** » 03 Apr 2007 11:51 am

Hi Massey,

Welcome to V3M and the joys of 340 ownership

A dare say that one of the more knowledgeable members of the forum will correct me here, but I believe there is no cheap and easy fix (unless you want to weld it, but I guess that's not too suitable). Check out the following thread:

http://www.volvo300mania.com/forum-uk/v ... hlight=lsd

Post by **Stavros** » 03 Apr 2007 01:47 pm

weld the diff.

acts almost the same way as a hard locking 2way from a race car anyhow, just doesnt unlock when you put clutch in.

if its a 1.4 340 i cant see you having much traction issues regardless of having an open diff or not.

Post by **Nick C** » 03 Apr 2007 08:54 pm

...except that the OP wants a rally car, not a race or drift car. I'd say not to weld the diff for a road rally car, you want control and the ability to put the power down, not pure sidewaysness - they'll go sideways fine on a muddy lane without it.

But that's just my opinion as a seasoned road rally competitor with a fair number of championship awards...

Post by **classicswede** » 03 Apr 2007 09:03 pm

I would keep the stock diff for rally use tbh. With a 2 ltr lump on a good set up its hard to make the rears spin at all just me I know.

Post by **Ronnie** » 03 Apr 2007 11:31 pm

classicswede wrote:I would keep the stock diff for rally use tbh. With a 2 ltr lump on a good set up its hard to make the rears spin at all just me I know.

Not so sure about that - went quite sideways on the way to work this am on a hairpin and lack of LSD make these situations unpredictable. Welded diff is fine for the dorifto boys, but I don't think it's suitable for rally or every day use. We need a solution.

I was wondering whether One of these might be made to fit with a bit of persuasion - certainly quite cheap comparitively

Post by **volvorsport** » 04 Apr 2007 09:15 am

well if james or somebody can produce a diff , ive got an IRS back end from a 960 with locker , we need to look at the spline count on the output shafts .

Post by **jtbo** » 04 Apr 2007 01:32 pm

Ronnie wrote:
classicswede wrote:I would keep the stock diff for rally use tbh. With a 2 ltr lump on a good set up its hard to make the rears spin at all just me I know.
Not so sure about that - went quite sideways on the way to work this am on a hairpin and lack of LSD make these situations unpredictable. Welded diff is fine for the dorifto boys, but I don't think it's suitable for rally or every day use. We need a solution.

I was wondering whether One of these might be made to fit with a bit of persuasion - certainly quite cheap comparitively

Those should fit to 200-serie differentials, imo.

Post by **volvorsport** » 04 Apr 2007 01:44 pm

i think from what i remember the diff is smaller than the dana 30 - but theres no reason why we cant try it .

Post by **classicswede** » 06 Apr 2007 09:50 pm

For very fast road use I am more than happy with std diff. When the power levels come up with my future plans then I will see (already over 120BHP)

From what I remember the dana will fit but the diff casing needs grinding to clear.