JB74 3-Door — Lightweight OEM+ Build Feedback wanted

Hi all, I’m setting up a new MY26 Suzuki Jimny JB74 3-door in Bluish Black Pearl and would really appreciate feedback from people with real-world Jimny experience.
The goal is not to build a hardcore crawler, show car, or heavy GVM-style tourer. I’m aiming for a balanced, lightweight, reliable OEM+ build for:

• mountains / alpine driving

• rural property and farm use

• mild off-road touring

• regular towing of a lightweight companion trailer

• long-term durability and daily usability

Weight discipline is a big part of the build. I’m trying to avoid unnecessary mass, especially on the roof and ahead of the front axle, while still making the vehicle properly useful.CURRENT JIMNY BUILD DIRECTIONSUSPENSION / GEOMETRY

• Old Man Emu lift using:

• OME correction/support hardware:

• Professional alignment after fitment

• Factory steering damper retained unless installer identifies an issue

• • OME 3145 front coils
  • OME 3146 rear coils
  • OME 63404 Nitrocharger Plus front shocks
  • OME 63155 Nitrocharger Plus rear shocks
  • FK97 headlight sensor kit
  • FK122 crossmember kit
  • FK96 panhard/bump stop kit
  • FK99 brake extension/shock mount kit
  • OMECA001 caster correction kit

WHEELS / TYRES

• King D-Locker wheels

• 15×7, 5×139.7, ET0, black

• BFGoodrich All-Terrain T/A KO3

• LT215/75R15

• Full-size matching spare

ROOF / LIGHTING

• ARB BASE Rack 1545 × 1285 mm

• ARB H1 4-leg gutter mount kit

• ARB BASE Rack wind deflector

• ARB/Nacho Nano V5AR2 4-light corner kit for roof scene/perimeter lighting

• No exterior body drilling for roof wiring

• OEM-style switch integration where practical

TOWING / REAR ELECTRICAL

• Hayman Reese X-Bar towbar

• 12-pin flat trailer socket, pre-wired for electric trailer brakes

• Redarc Tow-Pro Elite V3 brake controller

• Tow-Pro dial mounted neatly in driver-side factory heated-seat switch blank if possible

• Rear 50A Anderson plug

• 6 B&S twin-core positive/negative cabling

• No chassis-earth return

• Battery-end fuse/circuit protection

• Ignition-triggered heavy-duty solenoid/isolator so Anderson feed is isolated when ignition is off

• Looking at higher-clearance / extended DO35-compatible tongue or hitch geometry for the companion trailer

BATTERY / ENGINE BAY

• Invicta Hybrid Lithium 12V 50Ah starter battery

• Part: SNLHNS60L

• Main reasons: front-end weight saving, strong cranking, and retaining room for future compressor

• Wiring/layout to preserve space for future under-bonnet compressor

DRIVELINE RESILIENCE

• ARB differential breather kit

• High-mounted filtered manifold in engine bay

• • front diff
  • rear diff
  • transfer case
  • gearbox/transmission where practical

SIDE PROTECTION

• Horntools aluminium tube rock sliders

• Chosen for lower mass, sill protection and functional step use

FRONT PROTECTION / RECOVERY

• VIKOR Diablo Full Guard bull bar

• Integrated VKX cube lights

• Carbon Offroad XD6L long-drum 6000 lb winch

FORWARD LIGHTING

• STEDI ST3K 21.5-inch slim light bar

• To work with VIKOR integrated VKX cube lights

COMPANION TRAILER CONTEXT
The Jimny is also being set up to tow a lightweight custom companion trailer, so the towing setup is being designed as a vehicle/trailer system rather than as isolated accessories.
The trailer brief is:

• lightweight single-axle utility trailer, not a camper trailer

• builder-recommended ATM, likely around 750–1000 kg

• typical real use around empty to 300–650 kg loaded

• loaded towball target around 50–70 kg

• electric brakes via Redarc Tow-Pro Elite V3

• Cruisemaster DO35 coupling from initial build

• low tare and stable towing prioritised over maximum payload

• no fixed trailer battery, solar, inverter, fridge system or heavy toolbox

• no dedicated trailer spare if the Jimny spare can be used safely/legally as emergency spare

• used for rural property work, compact ride-on/zero-turn mower transport, firewood/general loads and mild touring support

• low-profile tailgate plus removable lightweight ramps for mower loading

• ramps to normally be stored off the trailer unless needed

• designed around rear-door/spare-wheel clearance, X-Bar clearance and safe handbrake/jockey-wheel placement

I’m deliberately trying to keep the trailer light and disciplined so the Jimny isn’t being asked to tow a mini expedition trailer.FEEDBACK WANTED
I’d especially appreciate feedback on:

• OME spring choice with this lighter front-end philosophy

• towing behaviour with X-Bar, Tow-Pro and a lightweight braked trailer

• whether a 50–70 kg loaded trailer towball target sounds realistic behind a modified JB74

• real-world experience with X-Bar + DO35-compatible hitch geometry

• VIKOR / Carbon winch direction versus heavier traditional bar/winch setups

• Invicta hybrid starter batteries in Jimnys

• roof rack and roof lighting wiring routes without drilling

• using the Jimny spare as an emergency trailer spare

• whether damped lightweight trailers behave noticeably better behind short-wheelbase 4WDs

• anything that looks overbuilt, underbuilt or likely to cause fitment headaches

Overall aim: a lightweight, reliable, useful Jimny — not a max-accessory build.

I'm going to go out on a limb and suggest this is not a uk build, mainly because of the bull bar. Consequently I can't really offer specific product experience. However I like the idea of keeping the weight down and have looked in the past at lithium starting at the time there were concerns about the heat resistance for lithium batteries in engine bays however I accept that the technology has come on leaps. As for general towing I regularly tow at full 1300kg capacity both materials and livestock and my 2024 is quite capable as long as you accept it really doesn't like hills going up as it's not very powerful and going down it's not very heavy, but drive accordingly and it's fine.

I'm not familiar with all of the bits, I'm also in the UK. But by and large the list all looks reasonable.

What I would say is, if you plan to off road the Jimny has a couple of weak areas. Firstly in ground clearance and secondly in suspension travel. They are both pretty limited in stock form.

The OME kit is meant to be high quality and I suspect it will ride and handle very well on road and probably on tracks too. But the lift is minimal and it won't really give you any improved articulation. So its benefits to off road performance are limited beyond the improved damping.

I fitted the Black Raptor Premium 2" kit to my Jimny, I think you can get this in Oz.I was very impressed with it. A proper 2" lift that increased the suspension articulation, giving a much more stable vehicle off road. The shocks are also top quality and adjustable, which might be handy if you are towing, as you'll be able to tweak them to the conditions and weight and readjust later when not towing.

IMO with the 2" kit it handled and rode better everywhere over a standard vehicle; on road, off road etc. And was a more capable machine because of it.

As ground clearance is an issue I'd also recommend some under vehicle protection such as a skid plate for the transfer box and radius arm mounts. They are very easy to impact and get hung up on.

Lastly tyre size. I had 215/75R15's on mine too. And they were fine. But later on I switched to 235/75R15 and they were much better IMO. I wish I'd gone for that size originally. With a lift and non factory bumper they should fit fine. If you are an auto it might impact performance a bit, mine was a 5 speed manual and I couldn't really tell much difference if I'm being perfectly honest.

 

Sounds like you will be doing the same stuff with your jimny as I do with mine. Have you owned one before?I've had several over the past 13 years and my mods list is pretty much just a towbar and roof bars. I have an 8x4 trailer that is on the car more than 50% of the time.

The only alignment you can do on a Jimny is the tracking and a lift kit won't change that so don't be fooled into paying more for a "professional alignment".

Otherwise that's a very long list of stuff to add to make a Jimny do things they pretty much do as standard.

Busta wrote:

The only alignment you can do on a Jimny is the tracking and a lift kit won't change that so don't be fooled into paying more for a "professional alignment".

I'd phrase this a little differently...

From the factory, only the toe is adjustable on a Jimny, and a lift kit doesn't change this.  What most lift kits change is the caster angle, and this can and does need to be corrected - in the case of the Old Man Emu, the caster will go negative unless the OMECA001 correction bushes are installed.  The steering wheel will also need to be "re-centered' and this is easiest done by adjusting the length of the drag link whilst the car is on the alignment rack, it can however be done by "trial & error", assuming you have a reasonably good idea of how the steering works - there is no need to reset or recalibrate the steering angle sensor as some people claim.

I installed an OME suspension upgrade on my five door Jimny back in March of this year but did not install the caster correction bushes at that time, the bushes were installed a week ago and the alignment verified this morning.

I have four sets of alignment numbers, the first before any modifications were done, the second after the bull bar & suspension were fitted, but before the drag link was adjusted, the third after the drag link was adjusted to re-center the steering wheel and the last one after the caster correction was done.

Did I need to do all of this, no, I could have simply followed ARB/OME's instructions and then re-centered the steering wheel and everything would have been fine, I chose to document what I was doing.

Over the years, I've run a couple of different brands of suspension upgrade on my 4WDs and OME has become my personal preference, I think it's a worthwhile upgrade for the Jimny, ride quality is improved, as is general stability.  Also fitted is the ARB differential breather kit, both front & rear diffs, t/case and automatic transmission.

Next on my list is a longranger 80 liter fuel tank - I've requested a quote from the local ARB reseller, and I'm waiting on him to get back to me.  I know it's going to be expensive, but, I don't have filling stations on every street corner as some of you do, and even when fuel is available, cleanliness can be an issue, fuel stored in & dispensed from drums is often contaminated.

ARB base rack - I have considered this and I'm still undecided.  I like a roof rack, they can be quite useful, my previous 4WDs had roof racks, they also had higher roof load limits than a Jimny does.  There are supposedly a couple of official Suzuki documents that mention a roof load limit higher than 30kg, but so far I haven't been able to locate any.  ARB's base rack is expensive, but it is the only fully welded aluminium rack, that I'm aware of.

Roof rack wiring - on previous 4WDs I have run the wiring down the inside door jamb of the tailgate and into the body by puncturing the underside of the protective gaiter carrying the tailgate wiring across to the tail gate - those vehicles had factory fitted roof rails and the seam where the roof panel was welded to the sides allowed the wiring to be completely concealed, alas, this is not possible with the Jimny, a few inches of the wiring will be visible.

A second option might be to drill the antenna base, BUT, this needs to be investigated on a market by market basis, some markets may get an antenna with an amplifier in the base, I don't think that's the case where I am, but I have not investigated.

 

Regarding your choice of OME springs...

The 3145 front spring is supposedly the option for a front bar with winch, and I'm going to assume that ARB/OME used the weight of their Summit bar and the Warn winches that they supply...

ARB Summit bar - 45kg, less 8kg (original bar removed)
Warn M8000 with synthetic rope - 25kg
Warn Zeon 8s (synthetic rope) - 34kg

Total 62~71 kg.

Vikor Diablo bar - 30kg, less 8kg (original bar removed)
Carbon CW-XD6L with synthetic rope - 11.2 kg

Total ~41 kg.

I'd be tempted to use the 3144 front coils which are rated for the bar without a winch.

Note - the 3144 & 3145 springs have the same spring rate, the difference is the 3145 has a 10mm longer "free height" - if you went with the shorter spring and feel that the front is lower than you like, you can a 10mm "trim packer", P/n #OMESJF10, which is essentially a 10mm polyurethane spacer that is inserted above the spring.