Yeah, there was definitely a lack of information on these things. I think you'll like them. They work pretty well for extra weight.

Thank you for the write-up. I'm debating between the bilstein 6112s and tundra 5100s w/ tundra coils. Though I'm leaning towards the 6112s there is something appealing about keeping as many toyota parts on the truck as possible.

So after driving the truck some more, I think the spring rate is a little higher than I would like. For someone who does high speed off roading frequently, or prefers a firm ride with enhanced handling, I think the 650 lb coil would be perfect. I however, drive around town and highway a lot, so I think a lighter spring may suit my needs better.

I talked briefly with a Bilstein Tech, as was to be expected, he couldn't give me recommendations on this setup due to liability and the fact that they haven't tested it (no one has). He did however confirm that the 1st gen Tundra 6112 uses a 650 lb spring, and the 3rd gen 4runner uses a 550 lb spring. A little more research showed that the 2nd gen Tundra Trd Pro uses a 600 lb spring.

Now, I'm not sure why they chose the 650 lb spring for the 1st gen Tundra that weighs less than the 2nd gen Tundra.

So with all of this information, I think I have decided to swap to a 16 x 3" 600 lb coil. We'll see how that goes.

So did you find the 600 lb. springs ?
If so what did you buy .

Max

Good question! Yes I did, I bought them from Filthy Motorsports. They are King 16" x 600 lb. When I installed the new coils I pulled the top plate spacers and kept them on the 3rd and 4th perch. It settled to about 2.5" lift, and the ride is fantastic! It is soft and compliant but very controlled.

is it possible to run stockish ride height with the tundra 6112? my stock front shocks are destroyed and am gonna replace them with a shock that I can adjust later when I’m ready for a full lift.


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Yes Ron, if you look at the pics 99 posted on the first page you can see the grooves or perch's on the 6112's. There are 8 of them and depending on what one you choose to place the lower spring mt on it raises or lowers the ride height. Second to the bottom or bottom grove should provide you with stock height.

Are the 6112 struts the same between the two? only the spring changes? or is there a stroke length difference also?

I'm doing a ton of research for my lift that I plan to do this winter, so this is very good info. One question that may possibly be dumb... Why did you install it at different notches for driver and passenger side?

So the Tundra one has significantly stiffer valving, and it also has a slightly shorter compressed length.

This was to make up for the extra weight on the drivers side with the fuel tank.

thanks, I'm having trouble finding comparison data between the two.

Your post pushed me toward 6112’s but 4runner setup just wanna say thanks and also I thought the spring rate on the 4runner setup was at 600lb? Wheelers Offroad lists them as 600lb springs?https://wheelersoffroad.com/i-306325...tegory:1388356

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It would be awesome if we could get the tundra shock with 600 lb springs. From that description on wheelers website it seems like that might be an option. I haven't done any calling around just yet, but I think that might be my next front end setup since I'm needing a bit stiffer valving and a bit more spring rate than my current setup. Especially when I finally add a winch to my setup.

@99 sr5 highlander

Since you replaced your springs with King springs maybe you would know; Would the Bilstein springs fit on a 2.5" coilover like King, Icon, etc?