Thread: 150 lb springs: vital statistics

I don't really understand what you want.
The green slash rear springs are from 92 models and others.
I have a set at home that I know 100% are rear OEM coils from my 92, I checked them a couple of weeks ago ( maybe for the front of my 2002 Disco) and AFAIR they are about 14.3MM in diameter, measured with a set of verniers on a coil of the wire.

I count about 9.5 coils, but this is subjective as there are flat ends.
Regards Philip A

Hi Andrew,

This some information cut and pasted from King spring website.
Measuring Coil Springs
Listed below is relevant information required when identifying or measuring coil springs.

1. Free Length: The length of the coil at it's longest point out of the vehicle not under load. To measure, lay coil flat, butt one end to flat surface at right-angles with coil (see diagram A).
2. Open Strut Length/Trapped Length: The length of the coil when vehicle body is jacked up and all load is removed from spring (except pre-load).
3. Static Length: The length of the coil in the vehicle as it stands under normal load.
4. Inside Diameter: (See diagram The width of the spring at it's widest point from inside edge to inside edge.
   Note: Check both ends, as many coils can reduce at one end only or be conical in design.
5. Total Coils: The total number of complete turns e.g.. the coil drawn has 5.5 total coils.
6. Material Diameter: (Check with verniers) Note: Check end coils as diameter may decrease.
7. End Configuration: There are several types of end finishes:

• 
  
  • i. Normal: (not ground, straight cut) Note: Measure end gap at tip to next coil (FWO-)or (FWC-)
    ii. Ground: Ground flat (TWC-)
    iii. Pigs Tail: End reduces greatly and will fit inside the coil below (PT-)
    iv. Reduced: End coil will sit on top of coil below. (RED-)
  
  
  

Trouble Shooting (Coil and Leaf Springs)

1. Kings Performance Replacement Coil Springs in both STD and Raised Heights are often shorter than the springs they are replacing. This is because they don't compress as far under the initial pre-load or weight on the vehicle.
2. When sorting vehicle height problems, be sure that all wheel and tyre sizes and type pressures are compatible. Measure all four corners. Measure centre hub to guard, with vehicle on flat surface.
   NOTE: Most vehicles transfer weight diagonally.
3. Many Part numbers listed in the catalogue have a driver's side and passenger side and are marked accordingly.
4. Wheel alignment is recommended after having front springs fitted on all vehicles. Some vehicles require wheel alignment on rear when rear springs are fitted. Refer wheel alignment specialist.
5. Allow 4WD Leaf Springs settling time of approximately 500klms then check and re-tighten all U-bolts and Shackles.

My spring I removed and replaced on my 81 RRC were the tapered style spring shown.


Hope this assists,


Cheers


Baggy

AFAIK LR never stamped the part number on their springs - which is the only way you would know what they are for sure.

I'm guessing if your looking at a 150lb spring your carrying a fair load - another option may be to look for a rangie / disco with a pedders, or OME coil set on it. Both I know work really well, and from what i've seen at wreckers they come up suprisingly often - ie, don't be put off aftermarket springs.

Les Richmond Automotive do an identical spring down to the green slash.

At one time they made the green slash spring 1/2 inch shorter but from their website it is now identical to the RRC 92 rear spring.

I put theirs in as my RRC was lifted 2 inches by the OEM springs but I wanted a bit lower so I still had castor.
Regards Philip A

Thankyou all for your replies. I got distracted and have not
made further progress. I may well end up with the LRA 160
lb springs which no doubt will be fine.

If I manage to find the wire diameter measurement I need I'll post it.

The info I have was that pre EFI RR's from '70 to '84 had 133 lb fronts and 150 lb rears. From '84 to '92 they used 133 lb fronts and variable rate 120-178lb rears. Then for a couple of years from 91 to 93 the RR County returned to the standard 133 lb fronts and 150 lb rears (ie not variable rate) with front and rear sway bars.
Rgds
Andrew K
82 two door
Brisbane