Anyone have experience with Dobinsons rear coils on Mojave?

[Artidemic13]

Hello all,
'24 Mojave X owner here, stock suspension on 35x12.5x17 tires (Toyo Open Country A/Tiii, E-rated) on Method 701s (-0 offset), finding myself in the same boat as numerous here on the forum: currently running about 500 lbs constant load, mostly in the rear, and seeing considerable sag (as I fully expected w/ the Mojave suspension). I'd estimate that I'm about 1" to 1.5" lower in the rear at my current load.

Deep in the rabbit hole on a short/medium-term solution, basically up-rating the rear coils for now but keeping everything else stock until it's time for a complete suspension overhaul with lift and new shocks (maybe in another 25K miles?). For now, I don't want to lift; I'm just trying to get back some rake, support my current constant load, and hope to ride at or even slightly above level when I'm fully loaded for expeditions (maybe another 300-400 lbs).

Wondering if anyone in a similar situation has experience running Dobinsons rear coils and, if so, how they play with the stock Fox 2.5 IBP shocks. Dobinsons offers various dual rate, 2" lift springs that have different free lengths, wire diameter, and load rating. I realize that no off-the-shelf spring is going to get me all the way there. But I'm thinking that if I can find the right combo to get me in the ballpark--something that, by the time it compresses under current load, has me at just a bit of rake, and then compresses a bit further when loaded for trips--that this will be better than suffering the sag and the compromised ride (on and off road) for the net couple years.

The models I'm looking at, w/corresponding specs:
- C29-233V: 525mm free height (~20 11/16"), wire diameter 17mm, rated for 2" lift @ 200-400 lbs load
- C29-243V: 505mm free height (~19.9"), wire diameter 18mm, rated for 2" lift @ 440-660 lbs load

I've read somewhere on the forums here that the stock Mojave rear coils are about 18.25" free height. No one seems to know anything about either their load rating or spring rate or wire diameter, but we all know they're pretty light springs and spec'd to work with the particular valving of the Mojave shocks (and NOT to be designed to support heavy loads, just like the stock shocks aren't damped to support loads either). What's tripping me up with the above specs is that the heavier duty spring is stiffer but shorter, while the slightly lighter spring is thinner but longer. So there seems to be two different lift philosophies going on there. Not sure which will be right for my use case. I've had ten different people tell me ten different approaches. I've even had different Dobinsons reps each suggest different coils.

I'm leaning towards the lighter/longer spring, thinking I'm already slightly above it's stated load rating for a 2" lift. So that would mean my load would compress the spring somewhat and get me where I want to be? Especially because the lift height is presumably measured off a stock Gladiator and the Mojave sits 1" higher in front?

Any insights or suggestions would be most appreciated. (But please don't tell me I should have bought a Rubicon... that horse has been adequately beaten to death all over this forum.)

Thanks!
GD

Sponsored

 

[MRPRmojave]

I have a 2022 Mojave with out steel bumper package. I am ripping out the stock coils and spacers front and rear and installing synergy springs. I have the AEV Lift and it does not handle any weight at all.

From what I have read around the internet is the Synergy coils are the closest to Mojave specs without being overly stiff. If you want stiff - high quality spring I've hear Clayton is the way to go.

 

[Artidemic13]

I have a 2022 Mojave with out steel bumper package. I am ripping out the stock coils and spacers front and rear and installing synergy springs. I have the AEV Lift and it does not handle any weight at all.

From what I have read around the internet is the Synergy coils are the closest to Mojave specs without being overly stiff. If you want stiff - high quality spring I've hear Clayton is the way to go.

Thanks Duke.
I've looked into the Clayton springs as well. Their 1.5" spring could also possibly work, but judging by pics posted by others on here who went that route, doesn't look like those will net me the rake I'm looking for at my current load. But I think their 2.5" coils will be too long. I could do the 1.5" with a spacer if it doesn't give me the height I need, but I'd rather not.

I spoke to someone at Synergy and he suggested I go either with their 3" or even their 4" coils. Just can't get my brain around that concept: 4 in. coils on a non-lifted Mojave? Just doesn't compute for me, even if the springs are supposed to be the closest to the Mojave specs. Essentially what he's suggesting is I just put a super long spring on their and have the weight compress it down to OEM height.

Sponsored