Rancho RS9000 Shock Specifications
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By: Terry L. Howe - 2/2000

Trying to find the right show for your modified Jeep is not easy. These Rancho RS900 shock specs will help make the shock selection process a true science. The first table is a table of RS9000 shock specifications with extended length and collapsed length. The upper and lower mount codes are explained in a table below.

When you pick shocks for you vehicle, the shock should not limit compression. If the shock limits compression, eventually, it will break or the shock mount will break. Bump stops should be used to limit up travel. Pick the longest shock possible that has a collapsed length that is less than the length of the shock at full compression.



ModelExtended
Length
Collapsed
Length
Upper
Mount
Lower
Mount
RS900121.4313.20ES31ES24
RS900529.3017.22ES27EB4
RS900618.3111.66EB1EB1
RS900822.3613.68EB1EB1
RS900926.7815.67S1ES25
RS901026.6915.84EB1EB1
RS901232.9118.94EB1EB1
RS901425.2114.67S1S1
RS901725.7915.13S1ES25
RS901914.809.67S1EB1
RS911226.6515.94EB1EB1
RS911320.6512.82EB1EB1
RS911424.9215.10EB4EB4
RS911521.2412.92S1EB1
RS911624.4014.79EB1EB1
RS911719.3011.92S1EB1
RS911822.8013.94EB1EB1
RS911918.3911.68EB1EB1
RS912014.389.70EB1EB1
RS912318.3911.68EB1EB1
RS912424.4014.79BP8EB1
RS912522.8313.97EB1EB1
RS912626.8215.97EB1EB1
RS912821.0912.77S1BP7
RS912920.4912.73BP18EB1
RS913617.6511.10S1EB1
RS913821.2012.88S1EB1
RS914325.6715.47EB2EB2
RS914422.5514.00EB2EB2
RS914513.999.31S1ES113
RS915119.1712.07ES31ES24
RS915218.3911.68ES76ES82
RS915518.3911.68EB1EB1
RS915612.248.40S1BP8
RS915721.9113.34EB2S1
RS915821.3513.03S1EB2
RS915921.6612.79S2S2
RS916522.8713.85EB1EB1
RS916614.349.54S1BP7
RS916825.9015.24S1ES25
RS917922.9513.95S1EB1
RS918021.7613.53EB2EB2
RS918526.8215.97BP8EB1
RS918621.0212.79S20EB1
RS918721.1712.94S1EB2
RS918812.248.40S1EB1

"ES" Mounting Code

Shocks with an ES mounting code have an eyering and bushing with a steel sleeve. The steel sleeve will determine the length of the bolt needed to pass through the mount and the diameter will be the size of the bolt. Unless otherwise specified, the dimentions are in inches.

CodeDiameterLength
ES210MM1.42
ES107/161.38
ES1712MM1.25
ES1812MM1.65
ES231/21.31
ES241/21.38
ES251/21.50
ES271/21.62
ES311/22.25
ES349/161.66
ES363/41.75
ES5310MM1.38
ES5512MM1.56
ES6512MM1.38
ES7612MM2.44
ES821/21.67
ES8410MM1.62
ES911/22.10
ES11016MM1.61
ES11316MM1.49
ES12416MM2.28
ES1537/161.50

"S" Mounting Code

Shocks with an S mounting code have stud mount. Jeep Wranglers, for instance, use a shock with a stud on top and an eyering on the bottom. In the table, the A column is the total length of the stud compressed, the B column is the length of the unthreaded portion of the stud, the C column is the diameter of the unthreaded portion of the stud, and the D column is the thread size. All dimentions are in inches except the thread size which is in inches with the pitch.

CodeABCD
S12.370.883/83/8-24
S22.181.033/83/8-24
S62.591.487/163/8-24
S202.681.383/83/8-24

"EB" Mounting Code

Shocks with an ES mounting code have an eyering and bushing. In the table, the A column is the inside diameter of the bushing, the B column is the width of the bushing, and the C column is the compressed width of the bushing. All dimentions are in inches.

CodeABC
EB15/81.441.25
EB23/41.62
EB411/161.721.55

"BP" Mounting Code

Shocks with an BP mounting code have an eyering and bushing with a bar pin through the bushing. In the table, the A column is the length of the bar pin, the B column is the length on center of the bar pin mount bolts or studs, and the C column is diameter of the bar pin mount bolts or studs. All dimentions are in inches.

CodeABC
BP73.132.500.35
BP83.502.870.35
BP183.783.140.39

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