Thread: Stock D2 but double the height measurements on rear suspension, why?

Originally Posted by MAF Diver

I've measured my suspension heights and they are:

Hub center to wheel arch (the plastic part):


Front driver: 483/484mm
Front passenger: 493mm
Rear driver: 471mm
Rear passenger: 474mm

Bump stop to axle bracket


Front driver 96/97 mm
Front passenger 100 mm
Rear driver 121/122 mm
Rear passenger 125 mm

The RAVE manual says that the rear (with SLS/air springs) should be 61.5 mm for the bump stop clearance. Mine is double that!

But the hub to center wheel arch from the RAVE manual (not liner) is close to mine at: 473 mm (+/- 15 mm).

What could have happened here?

Did I measure wrong? From the bump stop’s metal plate to top of axle right?

I've got:

• Factory shocks, coils, airbags, ACE, etc. (HSE 2003 V8 Discovery 2)
• I'm running tyres about 1-1.5 inches bigger than stock (265/60/18)
• No bullbar or accessories

Edit RAVE manual:

rave.jpg

Somebody with a nanocom probably recalibrated them, I had an air bag version once and jacked them up a bit.

Originally Posted by MAF Diver

I've measured my suspension heights and they are:

Hub center to wheel arch (the plastic part):


Front driver: 483/484mm
Front passenger: 493mm
Rear driver: 471mm
Rear passenger: 474mm

Bump stop to axle bracket


Front driver 96/97 mm
Front passenger 100 mm
Rear driver 121/122 mm
Rear passenger 125 mm

The RAVE manual says that the rear (with SLS/air springs) should be 61.5 mm for the bump stop clearance. Mine is double that!

But the hub to center wheel arch from the RAVE manual (not liner) is close to mine at: 473 mm (+/- 15 mm).

What could have happened here?
Did I measure wrong? From the bump stop’s metal plate to top of

I would measure from bump stop rubber to the plate on the axle.

Tony

I remember setting mine using the bump stop to chassis 61.5mm measurement and it was shockingly low.

So I just parked it on a level slab and set it level by eye.

Going by your measurements I must have got it reasonably right.

I have 520 mm from wheel centre to wheel arch. This is roughly 50 mm more than yours and I have a 50 mm lift.

Originally Posted by d2dave

I remember setting mine using the bump stop to chassis 61.5mm measurement and it was shockingly low.

So I just parked it on a level slab and set it level by eye.

Going by your measurements I must have got it reasonably right.

I have 520 mm from wheel centre to wheel arch. This is roughly 50 mm more than yours and I have a 50 mm lift.

How did you set the height? Via Nanocom?

Yep, I used nanocom.

Back in the day (early 2000's) we developed the suspension using hub to guard measurements. These were all accurate according to RAVE specs. Interestingly the coil sprung D2's all sat at the very lowest tolerance for ride height at approx 470mm (except 1 sample), and the SLS sat up higher closer to 485mm. I'd just run with hub to guard measurements.

Originally Posted by TonyC

I would measure from bump stop rubber to the plate on the axle.

Tony

Bump-stop clearance is the distance between the tip of the bump-stop and the contact point on the axle. Is that what you've measured?

Originally Posted by Slunnie

Back in the day (early 2000's) we developed the suspension using hub to guard measurements. These were all accurate according to RAVE specs. Interestingly the coil sprung D2's all sat at the very lowest tolerance for ride height at approx 470mm (except 1 sample), and the SLS sat up higher closer to 485mm. I'd just run with hub to guard measurements.

As i'm quite lazy i found the easyest way without any measurement... i'm using a 2 way T type bubble leveller on the boot floor and when the bubbles are both within marks i store those heights i dont know if the heights are as in the book but i'm sure it's equal all around