Dobinsons 100 Series Suspension options - full breakdown

[riffman12]

I've found that amount of rake rides well on my Tacoma and the 100. That is ideal as far as my experience goes.

yeah I have turned the T bars once more since then because it was a lot of rake, but I'm also hoping the rears will settle a bit.

 

[OwnerCS]

yeah I have turned the T bars once more since then because it was a lot of rake, but I'm also hoping the rears will settle a bit.

They will.

 

[bridgeburner]

Does anyone have suggestions on where to go to have my Dobinsons IMS shocks recharged with Nitrogen in the DC/MD/VA area (I’ve cross posted in the Capital Cruisers clubhouse as well)? I missed the memo that it’s an annual maintenance item and my 100 rides like garbage.
Ive had no luck finding a shop with the appropriate lossless chuck for the flat style valves on them.

I’d prefer not to take the shocks out to ship them to Dobinsons for the refill, as I’m frustrated enough that I’d throw them away and buy another brand.

 

[NearJetties]

Has anyone tried a c59-309 on a 100?

Same spring rate as the c59-185 but a bit more height.

I’m currently running the C59-167 with 15mm spacer, airbags and IMS shocks. I’ve been considering going moving up to the 185 and maybe even 171. I’ll be adding a cruiser company rear eventually too.

I think the 171 will be way too stiff though. I’m thinking I could get rid of the spacers with the 309.

• Suits Land Cruiser 80 Series and Lexus LX450
• C59-309 4″ lift with 110-220lbs weight
• 520/530mm free height, 20mm wire, 274LBF/in rate

 

[dividedan]

Has anyone tried a c59-309 on a 100?

Same spring rate as the c59-185 but a bit more height.

I’m currently running the C59-167 with 15mm spacer, airbags and IMS shocks. I’ve been considering going moving up to the 185 and maybe even 171. I’ll be adding a cruiser company rear eventually too.

I think the 171 will be way too stiff though. I’m thinking I could get rid of the spacers with the 309.

• Suits Land Cruiser 80 Series and Lexus LX450
• C59-309 4″ lift with 110-220lbs weight
• 520/530mm free height, 20mm wire, 274LBF/in rate

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I would bet that would be sky high. I’ve got the 185s with a pretty heavy truck and sits pretty high as it is.

 

[Yung4Lo]

Since you don't have hardly any weight on it now, I wouldn't go with those. 80 series coils fit on a 100 series, but they don't lift as much because the 100 series is heavier.

The C59-167 is what I'd suggest. They'll be 2" with a 3rd row seat or light weight and 1.5" with the rear bumper. You can add rear spacers to boost the rear height later if/when you add the rear bumper, or change out the springs at that time. If you get 2.5" springs now to suit the weight, but you don't have the weight on there, you'll get like 3-4" of rear lift and it won't work out so well.

Dobinsons 100 Series Land Cruiser 1998-2007 Rear Coil Spring Options - Pair

Dobinsons 100 Series Rear Coil Spring Options - this page combines every possible rear coil option for the 1998-2007 Landcruiser

exitoffroad.com

Hey Mike,

I'm wondering how much lift I'd be getting with your C59-175V coils. Is there a formula of some sort Dobinson's uses?
I have a Dissent rear bumper with a tire swingout + 35in spare, aluminum skids, rock sliders, steel TJM T17 front bumper + winch, no 3rd row seats.

How do the springs do paired with Dobinson's IMS shocks? I'm currently running Bilstein B8 5160 shocks and SOF2RH Slee Rear Coil Springs, which is too stiff and jarring for me, especially on the crappy Los Angeles streets, which have potholes, bumps, dips, and cracks everywhere.

Thanks,

Daniel

 

[crikeymike]

Hey Mike,

I'm wondering how much lift I'd be getting with your C59-175V coils. Is there a formula of some sort Dobinson's uses?
I have a Dissent rear bumper with a tire swingout + 35in spare, aluminum skids, rock sliders, steel TJM T17 front bumper + winch, no 3rd row seats.

How do the springs do paired with Dobinson's IMS shocks? I'm currently running Bilstein B8 5160 shocks and SOF2RH Slee Rear Coil Springs, which is too stiff and jarring for me, especially on the crappy Los Angeles streets, which have potholes, bumps, dips, and cracks everywhere.

Thanks,

Daniel

C59-175V give 2.5" of lift with 220lbs added on and behind the rear axle. Sounds like you're probably 300lbs with the bumper and tire on the back. So you'd probably be 2-2.25"

You add up how much constant added weight you've got, then choose a spring that suits that weight range and the lift height that you want.

I've never ran these springs myself, but they're not a very high spring rate, so they would ride quite comfortably, and the ride of the IMS shocks has proven to be very good on and offroad.

 

[Yung4Lo]

C59-175V give 2.5" of lift with 220lbs added on and behind the rear axle. Sounds like you're probably 300lbs with the bumper and tire on the back. So you'd probably be 2-2.25"

You add up how much constant added weight you've got, then choose a spring that suits that weight range and the lift height that you want.

I've never ran these springs myself, but they're not a very high spring rate, so they would ride quite comfortably, and the ride of the IMS shocks has proven to be very good on and offroad.

Great, thanks. So I'm leaning towards the extended travel shock. Will I need to extend my brake lines and add bump stops? Any other modifications I might need to make?

 

[crikeymike]

Great, thanks. So I'm leaning towards the extended travel shock. Will I need to extend my brake lines and add bump stops? Any other modifications I might need to make?

If you run longer rear shocks than I have listed in the first post, then yes, you'll need to extend brake lines and bump stops. You'll be trading up travel for down travel, so unless you're rock crawling the cruiser, it won't be very beneficial to add that extra down travel, and to limit the up travel.

 

[GerLC100]

I'm running a similar setup:
Dissent rear as you have it, rock sliders, no skids though.

The C59-167 I bought 1.5 years ago generally ride fine, but having the car empty it sits fairly level (so hanging down packed...). Debating at the moment whether to just use spacers, add an airbag or just the 175V...

Regarding the rear shocks: I chose the 3-way MRA (IMS front). This allows me to adjust between daily driver and loaded trips.

 

[Yung4Lo]

If you run longer rear shocks than I have listed in the first post, then yes, you'll need to extend brake lines and bump stops. You'll be trading up travel for down travel, so unless you're rock crawling the cruiser, it won't be very beneficial to add that extra down travel, and to limit the up travel.

Got it thanks!

You mentioned that the 175V’s are a softer spring… I’m now considering the 185’s. Thoughts? With a constant load of 350lbs behind the rear axle, what amount of lift am I looking at? Your website says 2in at 440lbs, but I’d be a tad lighter than that.

 

[crikeymike]

Got it thanks!

You mentioned that the 175V’s are a softer spring… I’m now considering the 185’s. Thoughts? With a constant load of 350lbs behind the rear axle, what amount of lift am I looking at? Your website says 2in at 440lbs, but I’d be a tad lighter than that.

Not my site. My site says this:

• 100 Series and Lexus LX470 (1998-2007) – Dobinsons C59-185 – 1.5″ lift, linear rate, with 440LBS constant rear weight

Same info as on the first post of this whole thread.

With less weight than listed, you'll get more lift.

 

[Yung4Lo]

Not my site. My site says this:

• 100 Series and Lexus LX470 (1998-2007) – Dobinsons C59-185 – 1.5″ lift, linear rate, with 440LBS constant rear weight

Same info as on the first post of this whole thread.

With less weight than listed, you'll get more lift.

Interesting. Why the discrepancy? Any way you can estimate how much lift I’ll have with the C59-185’s given 350lbs of constant weight? Seems like there should be some sort of formula to figure this out so we don’t have to bother and ask.