Looking to return my disco back to stock spring rate and height (or as close too).
I am over my 2" Iron Man lift with 32" BFG At's. I should have never installed this lift as the Spring rate is way too stiff.
Going down to 30" BFG's At's -255/70 R16 and likely OME springs.

Per the OME catalog front #2760 and rear #2764 are the softest spring rate. - Anyone have experience with these springs, specifically highway speed handling.

I would prefer to go with OME. While I am open to consider other springs I will not use terrafirma or bearmach parts.

thanks

 

here is a sheet of data on the various options. I grabbed it from somewhere among the forums so while it is probably well-intentioned, it may not be perfectly accurate.

 

Interestingly, the two stock front springs have different spring rates/part numbers on NAS LHD models, as I found out during parts searches. The paint stripe colors are indeed different.

Not sure why, but may have to do with changed weight distribution with the LHD design. Or could be engineering's attempt to counter some steering issue. Or could be because the drive shaft is towards the right (aligns better with RHD). I recall reading on forum that specified low front tire air pressure is also to counter some steering issue.

 

JohnZo, I have heard 2 different explanations for the difference in spring height in the front - -1 to compensate for the driver, 2 to compensate for road section. I believe the 2nd to be correct, so the taller spring goes on the side of the vehicle that is on the low side of the road section - but that's my opinion as I dont design cars but do design roads.

WaltNYC - thanks for posting that - I figured there was a light duty OME but wasnt finding it.

 

This is the most comprehensive spring database you'll find for D1 / D2 / Defender and RRC.

Red90 put together about 3/4 of this a long while back. I added quite a bit more and moved it all to Google Docs to preserve the information for posterity.

If you're looking for even more information on these old Rovers, this is my master resource list.

 

Those are excellent resources! Well done.

Do you happen to have figures for the un-sprung weight of the vehicles at each corner? That would go a long way to understanding how a particular spring would perform.