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Which OEM spring with 5100s?

Discussion in 'Suspension' started by Mulepadre, Feb 7, 2014.

  1. Feb 7, 2014 at 7:48 PM
    #1
    Mulepadre

    Mulepadre [OP] Mulepadre

    Joined:
    Jan 2, 2014
    Member:
    #119686
    Messages:
    706
    Gender:
    Male
    Central Arkansas
    Vehicle:
    2003 Std Cab 2.7L 4x4 & 2024 Off Road
    Bilstein 5100s, Deaver Leaf Springs, JBA UCAs on 2003 King 2.5 shocks front and rear on Off Road
    [FONT=&quot]I have been running for 9yrs All-Pro Bilstein coil-overs giving my '03 2.7L 4x4 single cab with a 100lb ARB bull bumper about 2.5" of lift. I have to replace these now because the shocks are leaking. But they want too much money for new Bilstein shocks - $560. And as [/FONT][FONT=&quot]the ride has been too stiff and I no longer off-road too much I am looking for a softer ride with the same 2.5" lift.[/FONT]

    [FONT=&quot]I am thinking to go with Bilstein 5100s with an OEM type spring, BUT WHAT SPRING?
    [/FONT]
    [FONT=&quot]I have listed Raybestos specs below taken from RockAuto (for my original rig) not sure how to decipher this info to determine the best chance spring for a softer ride? [/FONT]
    [FONT=&quot]
    [/FONT]
    [FONT=&quot]RAYBESTOS 5851376 [/FONT]
    [FONT=&quot]Front; 4WD; Off Road Package[/FONT]
    [FONT=&quot]Inner Diameter[/FONT]
    [FONT=&quot]3.14"[/FONT]
    [FONT=&quot]Wire Diameter[/FONT]
    [FONT=&quot].67"[/FONT]
    [FONT=&quot]Median Design Height[/FONT]
    [FONT=&quot]10.00"[/FONT]
    [FONT=&quot]Design Load[/FONT]
    [FONT=&quot]2206 Driver Side/2041 Pass. Side[/FONT]
    [FONT=&quot]Spring Rate[/FONT]
    [FONT=&quot]595[/FONT]
    [FONT=&quot]Approximate Free Height[/FONT]
    [FONT=&quot]13.71" Driver Side/13.47" Pass. Side[/FONT]


    [FONT=&quot]RAYBESTOS 5851378 [/FONT]
    [FONT=&quot]Front; 4WD; Extended Cab Pickup; Standard Cab Pickup; Except Off Road Package[/FONT]
    [FONT=&quot]Inner Diameter[/FONT]
    [FONT=&quot]3.13" Driver Side/3.14" Pass. Side[/FONT]
    [FONT=&quot]Wire Diameter[/FONT]
    [FONT=&quot].70" Driver Side/.64" Pass. Side[/FONT]
    [FONT=&quot]Median Design Height[/FONT]
    [FONT=&quot]12.00" Driver Side/11.00" Pass. Side[/FONT]
    [FONT=&quot]Design Load[/FONT]
    [FONT=&quot]1628 Driver Side/1565 Pass. Side[/FONT]
    [FONT=&quot]Spring Rate[/FONT]
    [FONT=&quot]660 Driver Side/465 Pass. Side[/FONT]
    [FONT=&quot]Approximate Free Height[/FONT]
    [FONT=&quot]14.70" Driver Side/14.70" Pass. Side[/FONT]


    [FONT=&quot]RAYBESTOS 5851364[/FONT]
    [FONT=&quot]Front; 4WD; Standard Cab Pickup; Standard trans.; Except Off Road Package[/FONT]
    [FONT=&quot]Inner Diameter[/FONT]
    [FONT=&quot]3.14"[/FONT]
    [FONT=&quot]Wire Diameter[/FONT]
    [FONT=&quot].64"[/FONT]
    [FONT=&quot]Median Design Height[/FONT]
    [FONT=&quot]11.00"[/FONT]
    [FONT=&quot]Design Load[/FONT]
    [FONT=&quot]1565[/FONT]
    [FONT=&quot]Spring Rate[/FONT]
    [FONT=&quot]465[/FONT]
    [FONT=&quot]Approximate Free Height[/FONT]
    [FONT=&quot]14.37"[/FONT]


    [FONT=&quot]RAYBESTOS 5851365 [/FONT]
    [FONT=&quot]Front; Crew Cab Pickup; Pre Runner; Except Off Road Package[/FONT]
    [FONT=&quot]Inner Diameter[/FONT]
    [FONT=&quot]3.14"[/FONT]
    [FONT=&quot]Wire Diameter[/FONT]
    [FONT=&quot].64"[/FONT]
    [FONT=&quot]Median Design Height[/FONT]
    [FONT=&quot]11.00"[/FONT]
    [FONT=&quot]Design Load[/FONT]
    [FONT=&quot]1422[/FONT]
    [FONT=&quot]Spring Rate[/FONT]
    [FONT=&quot]465[/FONT]
    [FONT=&quot]Approximate Free Height[/FONT]
    [FONT=&quot]14.06"[/FONT]


    [FONT=&quot]RAYBESTOS 5851366 [/FONT]
    [FONT=&quot]Front; Extended Cab Pickup; Standard Cab Pickup; Automatic trans.; Pre Runner[/FONT]
    [FONT=&quot]Inner Diameter[/FONT]
    [FONT=&quot]3.14"[/FONT]
    [FONT=&quot]Wire Diameter[/FONT]
    [FONT=&quot].64"[/FONT]
    [FONT=&quot]Spring Rate[/FONT]
    [FONT=&quot]465[/FONT]
    [FONT=&quot]Approximate Free Height[/FONT]
    [FONT=&quot]14.37"[/FONT]


    [FONT=&quot]RAYBESTOS 5851367[/FONT]
    [FONT=&quot]Front; Crew Cab Pickup; Pre Runner; Off Road Package[/FONT]
    [FONT=&quot]Inner Diameter[/FONT]
    [FONT=&quot]3.14"[/FONT]
    [FONT=&quot]Wire Diameter[/FONT]
    [FONT=&quot].64"[/FONT]
    [FONT=&quot]Median Design Height[/FONT]
    [FONT=&quot]11.00"[/FONT]
    [FONT=&quot]Design Load[/FONT]
    [FONT=&quot]1275[/FONT]
    [FONT=&quot]Spring Rate[/FONT]
    [FONT=&quot]465[/FONT]
    [FONT=&quot]Approximate Free Height[/FONT]
    [FONT=&quot]13.74"[/FONT]
     
  2. Feb 8, 2014 at 6:15 AM
    #2
    Mulepadre

    Mulepadre [OP] Mulepadre

    Joined:
    Jan 2, 2014
    Member:
    #119686
    Messages:
    706
    Gender:
    Male
    Central Arkansas
    Vehicle:
    2003 Std Cab 2.7L 4x4 & 2024 Off Road
    Bilstein 5100s, Deaver Leaf Springs, JBA UCAs on 2003 King 2.5 shocks front and rear on Off Road
    [FONT=&quot]I have been reviewing the forums for several days to try and figure this all out.
    [/FONT][FONT=&quot]It is obvious that a higher spring rate or longer spring would increase lift on front of the truck.
    These Raybestos springs, while not OEM, vary up to an inch in length and have significantly different spring rates and design loads. OEM I believe have a 550lb. spring rate.
    [/FONT]
    [FONT=&quot]Someone wrote that a lower spring rate coupled with a longer spring would require more preloading.[/FONT]
    [FONT=&quot]And that a higher spring rate coupled with a shorter spring would need less preloading to get lift.
    [/FONT]
    [FONT=&quot]What Raybestos gives as design load is not clear to me though. This must be the estimated load capacity for ideal performance of the spring.
    If my tacoma weighs out at 4000lbs empty and dry then the ideal design load ought be 1000lbs
    Correct me if you will...
    [/FONT]

    [FONT=&quot]
    [/FONT]
    [FONT=&quot]
    [/FONT]
     

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