Jetboy
New member
I think the part number is probably a difference from when they changed from the old version with double stacked adjustment collars to the new ones with a single collar or something like that.
The fitment for 883-06-130 is 2003 - 2019. The same for all 2.5" coilovers for the 4Runner that I looked at.
The only difference between the shorter and longer version is the removal of a rubber bumper internally that stops the down travel at a certain point. Otherwise they're the same product. If you want to covert one to the other you'll just have to either remove the bumper or add it depending on what you're starting with and what you're trying to get to.
The front suspension is nearly identical between the 4th and 5th gen. They should use the same front parts throughout. There are slight differences in lower control arms and a few things - but they should be interchangeable. They all share the same spindle assembly, same upper control arms, same mounting tab spacing and location. The frames are nearly identical between the 4th and 5th gen. The difference in track width is just the result of different wheel offsets used on different models.
I think it would help if you measured the fender to hub center. I think the rear springs are a lot taller than 1.5" It's a tough job for a spring maker. If it's a pure 1.5" lift someone will put them on with a 500lb rear bumper and then complain that they're not getting the full lift. If they make them really stiff so all the weight doesn't sag them and everyone gets a 1.5" lift - then they're too stiff and people complain. If they're soft, then they're sensitive to weight and everyone gets a different amount of lift. You can't win..
I don't know anything about the coils you have. My guess is that they're giving you more like 3" rear lift based on the picture.
I have Dobinson's rear springs C59-725 that were originally advertised as 1.75" rear springs, now listed as 2.25" rear springs. I think 2.25 empty is pretty close to accurate. My front is about 2.5" lift also. I normally have around 100lb of gear in the rear "empty" - I always have a minimum "kit" of stuff like fire extinguisher, small tool set, big first aid kit, etc. I don't haul around a full offroad kit everywhere. I tried to maintain factory rake - it's important for things like MPG and break force distribution(if you don't do a zero point calibration it thinks "level" means a lot of weight in the back).
Here's an idea of how mine sits with about 2" of rear lift.
The fitment for 883-06-130 is 2003 - 2019. The same for all 2.5" coilovers for the 4Runner that I looked at.
The only difference between the shorter and longer version is the removal of a rubber bumper internally that stops the down travel at a certain point. Otherwise they're the same product. If you want to covert one to the other you'll just have to either remove the bumper or add it depending on what you're starting with and what you're trying to get to.
The front suspension is nearly identical between the 4th and 5th gen. They should use the same front parts throughout. There are slight differences in lower control arms and a few things - but they should be interchangeable. They all share the same spindle assembly, same upper control arms, same mounting tab spacing and location. The frames are nearly identical between the 4th and 5th gen. The difference in track width is just the result of different wheel offsets used on different models.
I think it would help if you measured the fender to hub center. I think the rear springs are a lot taller than 1.5" It's a tough job for a spring maker. If it's a pure 1.5" lift someone will put them on with a 500lb rear bumper and then complain that they're not getting the full lift. If they make them really stiff so all the weight doesn't sag them and everyone gets a 1.5" lift - then they're too stiff and people complain. If they're soft, then they're sensitive to weight and everyone gets a different amount of lift. You can't win..
I don't know anything about the coils you have. My guess is that they're giving you more like 3" rear lift based on the picture. I have Dobinson's rear springs C59-725 that were originally advertised as 1.75" rear springs, now listed as 2.25" rear springs. I think 2.25 empty is pretty close to accurate. My front is about 2.5" lift also. I normally have around 100lb of gear in the rear "empty" - I always have a minimum "kit" of stuff like fire extinguisher, small tool set, big first aid kit, etc. I don't haul around a full offroad kit everywhere. I tried to maintain factory rake - it's important for things like MPG and break force distribution(if you don't do a zero point calibration it thinks "level" means a lot of weight in the back).
Here's an idea of how mine sits with about 2" of rear lift.
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You are effectively removing spring travel while concurrently stiffening the spring when you preload it. It should be fairly obvious, simple physics. The best solution is to buy and install a taller spring (or even one with a higher weight rating), you basically get built in lift, like a Dobinsons or spec out an Eibach. It would take literally 10 minutes with the coil-over off the truck, depending on the extra height you may need to compress them a little to get the preload collar on.
I would think a mild adjustment would not feel so much as when you reach the max lift, my ride became more harsh at just under 3.0' inches of lift, I also have a few hundred extra pounds up front which I know has a big effect on my front suspension.
