How low can you go on a BP-51 suspension?

[BAY2MTN]

The left to right lean is not going to be exact. before we began my project, the right side was a bit lower than the left in stock form and now is the same after the lift, you can try the KDSS reset and that may help some

I think mine lean is close to 2". I'm sure he got the springs swapped (A&B). He insisted they bled the KDSS, but I couldn't budge the valve heads, so I'm calling bs. I'm waiting until i'm free to roam to have him handle it.

 

[Fishinsea]

I think mine lean is close to 2". I'm sure he got the springs swapped (A&B). He insisted they bled the KDSS, but I couldn't budge the valve heads, so I'm calling bs. I'm waiting until i'm free to roam to have him handle it.

2 Inches sounds to me like you need to do the KDSS reset procedure whiich is stupid simple, when my truck first came down off the lift I had about 2 inch of lean as well, then we did the KDSS reset and imediately squatted back down to normal, maybe give this a go

 

[BAY2MTN]

2 Inches sounds to me like you need to do the KDSS reset procedure whiich is stupid simple, when my truck first came down off the lift I had about 2 inch of lean as well, then we did the KDSS reset and imediately squatted back down to normal, maybe give this a go

Been hiding in a mountain cabin near Lake Tahoe since mid-March. Once I'm back home permanently, I'm going to give the valves a go again. These past two months have given me a lot of time to make to-do lists for the LC.

 

[Fishinsea]

I think mine lean is close to 2". I'm sure he got the springs swapped (A&B). He insisted they bled the KDSS, but I couldn't budge the valve heads, so I'm calling bs. I'm waiting until i'm free to roam to have him handle it.

As for the rear springs, I closely examined mine prior to install and they had no left or right, so either somewhere i didn't see it or it was a 50/50 chance and i got it right

 

[CharlieS]

I just installed 2721 OME springs, and one was definitely taller. I installed the longer one on the US passenger side/gas tank side, and my vehicle is level side to side.

 

[CharlieS]

@BAY2MTN - my KDSS had a rusted shut shutter valve. It had a very bad lean (much higher on the driver side by inches) until we got them both open, and did the balancing procedure.

The other issue, that I found thanks to a tip from another member here, was that one of the rear springs wasn't seated in the upper perch.

It is all worth checking once you come out of the mountains.

 

[Fishinsea]

@BAY2MTN - my KDSS had a rusted shut shutter valve. It had a very bad lean (much higher on the driver side by inches) until we got them both open, and did the balancing procedure.

My lc 200 has very low mileage and thank god the came right open, the procedure states they are hex or allen key but mine are 10mm bolts, I also sprayed mine with Boeshield T-9 to prevent any future corrosion.

 

[bloc]

The left to right lean is not going to be exact. before we began my project, the right side was a bit lower than the left in stock form and now is the same after the lift, you can try the KDSS reset and that may help some I could always have the front right adjusted the 1/4 inch that its out but the rears have no adjustment unless you change the coils, if I sit and stare at mine i can see its slightly off but its barely noticable, Im happy

You might look into trim packers for the rear. Basically small shims that go in the spring seat to shim it up a small amount.

 

[Eric Sarjeant]

We finished a BP-51 with 2720 rear springs today. Going for a “stock +” look. Came in at 77” high from the ground to the highest part (factory room rails/cross bars) That’s setting the BP-51s at 1.5” with 0mm preload on Michelin Defender LT275/70/18 (33.2”) zero rake, no KDSS lean, All four wheel wells are 37” from ground to bottom of the wheel wells.

 

[Nola622]

Just curious Eric - did the vehicle in your post directly above this have 3rd row seats or was it a Heritage?

 

[CharlieS]

@Eric Sarjeant - do you by any chance have the hub to fender, or ground to fender measurement on an unmodified land cruiser that you could post?

It looks like it would be around 35-1/2" ground to fender if we just subtract 1-1/2" from the 37" you ended up with, but I'd expect there to be some rake in a stock configuration.

I'm trying to figure out how much lift I got, but don't have a good baseline from unmodified. I never thought to measure before I started adding junk to my rig.

 

[bloc]

@Eric Sarjeant - do you by any chance have the hub to fender, or ground to fender measurement on an unmodified land cruiser that you could post?

It looks like it would be around 35-1/2" ground to fender if we just subtract 1-1/2" from the 37" you ended up with, but I'd expect there to be some rake in a stock configuration.

I'm trying to figure out how much lift I got, but don't have a good baseline from unmodified. I never thought to measure before I started adding junk to my rig.

Bump stop to axle is a much more reliable measurement. The fender lip isn’t totally round, and the alignment you use can significantly skew the number.

 

[kbohtx]

We finished a BP-51 with 2720 rear springs today. Going for a “stock +” look. Came in at 77” high from the ground to the highest part (factory room rails/cross bars) That’s setting the BP-51s at 1.5” with 0mm preload on Michelin Defender LT275/70/18 (33.2”) zero rake, no KDSS lean, All four wheel wells are 37” from ground to bottom of the wheel wells.

Digging up a very old thread, @Eric Sarjeant, but do you have any pics of this completed vehicle? Thanks!

 

[lc2021he]

Digging up a very old thread, @Eric Sarjeant, but do you have any pics of this completed vehicle? Thanks.

I second this - any final pics of this vehicle? @Eric Sarjeant

 

[lc2021he]

We finished a BP-51 with 2720 rear springs today. Going for a “stock +” look. Came in at 77” high from the ground to the highest part (factory room rails/cross bars) That’s setting the BP-51s at 1.5” with 0mm preload on Michelin Defender LT275/70/18 (33.2”) zero rake, no KDSS lean, All four wheel wells are 37” from ground to bottom of the wheel wells.



View attachment 2322595

Exactly what I'd like to pull off. "Stock +". Do you have pics of this vehicle? @Eric Sarjeant

 

[Eric Sarjeant]

Here ya go!

 

[Eric Sarjeant]

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[lc2021he]

Looks great! @Eric Sarjeant. Thanks for posting. I am talking to the guys at Ironman and am leaning towards the following: 1" foam cell pro (comfort load) Stage 2 kit. They said they can adjust the front springs (or struts, can't remember what they said - i'm green in this area) by 10mm to mimic the front coil spacer which helps reduce overall rake. Thoughts on that plan? Or does the lift negate the rake automatically? I put the OEM front coil spacers in when I purchased the truck because i like the "flatter" look.

 

[Eric Sarjeant]

Looks great! @Eric Sarjeant. Thanks for posting. I am talking to the guys at Ironman and am leaning towards the following: 1" foam cell pro (comfort load) Stage 2 kit. They said they can adjust the front springs (or struts, can't remember what they said - i'm green in this area) by 10mm to mimic the front coil spacer which helps reduce overall rake. Thoughts on that plan? Or does the lift negate the rake automatically? I put the OEM front coil spacers in when I purchased the truck because i like the "flatter" look.

I'm not too familiar with Ironman, the only thing I really would question is the ride, the OEM suspension is go nice, I'd hate for you to get something stiff that you inevitably hate. Hopefully others can give better advise.

 

[Saldog]

I always thought they were exactly the same, but @bloc had a good idea, just measure both...

The HE spring unsprung is 18 7/8" ... The Base is 18" unsprung.

HE SPRINGS - 48231-60E50 RH 48231-60E40 LH
Base 48231-60A20 RH 48231-60B11 LH

I called Toyota but they weren't able to give me any differences other than packaging differences

Hey Eric, given the difference between the HE Spring and Base, would the OME 2721 Spring give the HE O" lift. Thanks in advance.