Well?

IRS? If yea, how are them rear suspension bushings, CV joint boots, grease pack inside the boots and splined axle shaft interfaces between the diff and rear wheel hub assemblies.

Rear factory Nivomat dampers?

https://www.brickboard.com/FAQ/700-900/RearSuspension.htm

Also, the front:
https://www.brickboard.com/FAQ/700-900/FrontSuspension.htm

May want to ask at Turbobricks (www.turbobricks.com). You can read some content yet to see all content an ask requires a free account.

Also, how are them rear wheel bearings?? You may have easy to replace sealed bearings yet I do not know how many miles before replacement.

If early 700-maybe 900, yiou have a solid live rear axle. So bushings, rear hub work inspection (parking brake), and check rear wheel bearings like on 240.

Plenty of testimonials here, using search or goofgle search with over load or heavy after market springs you may get used, from Volvo, or Moog,

How are them front strut mounts? Have you serviced the front torque rod and suspension bits.

How many miles?

If overload springs, you'd get dampers that match sprint rate. Watch them air lift dampers as these may or may not last very long yet you can watch a fully loaded rear rise. Give and take on cost benefit.

If you stay stock springs front and rear and are sure the suspension bits are okay like bushings, Bilstein Touring may be okay, yet the rear will sag. A happy medium may be the air lift or like rear dampers. If your 700 - 900 has rear Nivomats, well, you'll have some moddin' to do.

I'll guess you do not have ride height spring changes like lowering or sport spring. My stupid idea as thi8s forum was all about cutting, lowering or like spring with Billy's Billy's Billy's (Stupid me) in 2000. As in Bilstein HD (B6 in the new Bilstein vernacular?).

Search this forum and also Turbobricks for folks doing the same to their (what year? 700-900 series with IRS or solid live rear axle.

Research is cheapo.

Error 503 or 504?
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