Quote:
Originally Posted by fourfive
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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2000 SR5 V6 Manual 4WD
https://www.toyota-4runner.org/3rd-g...biography.html
2000 Limited V6 Auto E-Locker Sold 3/2022
