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Old 05-28-2021, 10:35 AM #31
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Quote:
Originally Posted by HiluxSurf SSR-G View Post
IMS59-50705 has comfort valving. but both are for 0-2.5" lift.
But accdg to this, it's 0-3" lift:
Dobinsons IMS Struts and Shocks - Adjustable Height Monotubes - 5th Gen 4Runners
Ahhh I see that now. Thank you! I'm guessing with added weight in the back the normal valving would probably be more appropriate.
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Old 06-01-2021, 05:37 PM #32
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Quote:
Originally Posted by HiluxSurf SSR-G View Post
IMS59-50705 has comfort valving. but both are for 0-2.5" lift.
Dobinsons IMS Struts and Shocks - Adjustable Height Monotubes - 5th Gen 4Runners
Quote:
Originally Posted by Bad Luck View Post
Ahhh I see that now. Thank you! I'm guessing with added weight in the back the normal valving would probably be more appropriate.
If I'm understanding the logic correctly, the 4th/5th gen 4runner rear shocks advertised as their "comfort valved",IMS59-50705, would be ideal for 4runners (3rd gens) using a 3"+ rear spring without constant rear weight or armor & IMS59-50701 are for medium to heavy constant rear load.

If that is the case, I wonder at what weight limit (specifically for 3rd gens) would it make sense to switch from the comfort valved IMS59-50705 rear shocks to IMS59-50701?

Also wonder which of those 2 rear shocks would play best with the 210v?

Since the IMS59-50705, IMS59-50701 & 210v aren't for 3rd gens, I'm asking here b/c I'm assuming I wouldn't get a straight answer if I called the manufacturer or distributor with these questions.
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Old 06-01-2021, 07:39 PM #33
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not an answer, just added info, the 210V has a spring rate of 160/239 lb/inch and a free height of 18.70"/19.09".



Quote:
Originally Posted by fourfive View Post
If I'm understanding the logic correctly, the 4th/5th gen 4runner rear shocks advertised as their "comfort valved",IMS59-50705, would be ideal for 4runners (3rd gens) using a 3"+ rear spring without constant rear weight or armor & IMS59-50701 are for medium to heavy constant rear load.

If that is the case, I wonder at what weight limit (specifically for 3rd gens) would it make sense to switch from the comfort valved IMS59-50705 rear shocks to IMS59-50701?

Also wonder which of those 2 rear shocks would play best with the 210v?

Since the IMS59-50705, IMS59-50701 & 210v aren't for 3rd gens, I'm asking here b/c I'm assuming I wouldn't get a straight answer if I called the manufacturer or distributor with these questions.
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Old 06-02-2021, 10:33 AM #34
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Quote:
Originally Posted by fourfive View Post
If I'm understanding the logic correctly, the 4th/5th gen 4runner rear shocks advertised as their "comfort valved",IMS59-50705, would be ideal for 4runners (3rd gens) using a 3"+ rear spring without constant rear weight or armor & IMS59-50701 are for medium to heavy constant rear load.

If that is the case, I wonder at what weight limit (specifically for 3rd gens) would it make sense to switch from the comfort valved IMS59-50705 rear shocks to IMS59-50701?

Also wonder which of those 2 rear shocks would play best with the 210v?

Since the IMS59-50705, IMS59-50701 & 210v aren't for 3rd gens, I'm asking here b/c I'm assuming I wouldn't get a straight answer if I called the manufacturer or distributor with these questions.
DISCLAIMER: The following is purely a guesstimate based on gut feeling and sloppy napkin math. Use at your own risk!
I think comparing curb weights would probably be the best way to determine which one to go with. All curb weights listed below are from google.
2000 4Runner curb weight 3440-3975
2002 4Runner curb weight 3600-3975
2008 4Runner curb weight 4045-4530
2015 4Runner curb weight 4400-4805
Typically a vehicle has more weight on the front axle vs the rear axle when unloaded. Let's guestimate 55 front/45 rear.
So it looks like a difference of 400-600ish lbs between 3rd and 4th gen 4Runner's. About 180-270 lbs rear axle difference.
Around 800 lb difference between 3rd and 5th gen 4Runner's. About 360 lbs rear axle weight difference.
Based on those guesstimations and napkin math I would think larger wheels and tires (unsprung weight still plays into shock performance) and a steel rear bumper would probably be the limit for the comfort valved shocks. I think either would work well with the 210V springs. If you're planning on doing some high speed offroading then I have no clue whoch would be a better option.
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