Longer Shocks for your Lifted Isuzu

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Re: Longer Shocks for your Lifted Isuzu

Postby McMoneyPit_2 » Wed Jan 25, 2017 5:36 pm

nasty610 you seem like the guy to talk to for the question that i have. I live in the desert and end up on a lot of rough roads. I've had remote res shocks on my Rubicon and they made a huuge difference. I would love to run these fox 2.0 on my trooper. If i were to modify my front shock towers to accept a bolt (like the lower mount) could i run those same fox remote shocks you listed in the front?

End game i'd like to lift the front rear 2" and replace the shocks with slightly longer remote res shocks.
2002 Trooper TOD, - ARB bumper, LED spotlights, AISIN manual hubs, 2" OME suspension lift, 33x10.5x15 BFG KM2 mud terrains, Pro Comp steelies, blacked out, Warn Zeon 10S, more to come
2005 Jeep Rubicon - lots of lift and 35s (SOLD)
2002 Ford Ranger 4x4 - 3" body lift, 2" suspension lift, 33x12.5x15 Cooper STT, Riddler diff armor, custom rear bumper
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Re: Longer Shocks for your Lifted Isuzu

Postby nasty610 » Thu Jan 26, 2017 12:58 pm

If you used different shock towers then yes you could mount a reservoir style shock up front. You have to figure out the amount of shaft travel then select the appropriate shock. I'm not sure I listed a reservoir shock that would work up front though.
1996 Isuzu Trooper Base model
Front t-bar crank, Rear lifted with 1st gen Grand Cherokee Coils, Cooper Discovery AT3 265/75R16
1991 Trooper Base Model
HD Sway-a-Way torsion bars, Sweet Camo Paint(adds 50 hp), Snowflakes w/ Firestone Destination LE2 265/75r16
Lift Coil Spring Options
Add-a-Leaf kits and Part Numbers
Longer Shocks for your Lifted Isuzu
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Re: Longer Shocks for your Lifted Isuzu

Postby McMoneyPit_2 » Fri Jan 27, 2017 11:59 am

I see. Then to save me the trouble of pulling shocks and measuring do you happened to know the fully extended/compressed lengths of the front and rear shocks for the 2002 trooper?

Also, am I correct in believing that the shock isn't the down travel limit on the front as it is on other IFS front ends? Its actually that bump stop on the underside of the upper control arm right?
2002 Trooper TOD, - ARB bumper, LED spotlights, AISIN manual hubs, 2" OME suspension lift, 33x10.5x15 BFG KM2 mud terrains, Pro Comp steelies, blacked out, Warn Zeon 10S, more to come
2005 Jeep Rubicon - lots of lift and 35s (SOLD)
2002 Ford Ranger 4x4 - 3" body lift, 2" suspension lift, 33x12.5x15 Cooper STT, Riddler diff armor, custom rear bumper
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Re: Longer Shocks for your Lifted Isuzu

Postby nasty610 » Fri Jan 27, 2017 12:13 pm

Troopers from 92-02 share the same rear shocks. Extended length 19.25" compressed 12.36". OE replacement shocks tend to be close to those number.

The shock is the limit in stock form. There's also a metal stop with a rubber pad. So at some point you need to modify the down stop to increase travel. After that the ball joint is the limit then the CV axle runs out of travel and finally the steering joint. Basically if you really want to maximize travel you need to extend the control arm. Gains on stock arms are around an inch.
1996 Isuzu Trooper Base model
Front t-bar crank, Rear lifted with 1st gen Grand Cherokee Coils, Cooper Discovery AT3 265/75R16
1991 Trooper Base Model
HD Sway-a-Way torsion bars, Sweet Camo Paint(adds 50 hp), Snowflakes w/ Firestone Destination LE2 265/75r16
Lift Coil Spring Options
Add-a-Leaf kits and Part Numbers
Longer Shocks for your Lifted Isuzu
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Re: Longer Shocks for your Lifted Isuzu

Postby McMoneyPit_2 » Fri Jan 27, 2017 12:43 pm

Great info.

At this point I've done a ball joint flip (old ones were bad when i bought it) but nothing else. So if i plan on cranking up the front and replacing springs in the rear for about 2" each then I should be looking for shocks ~1" longer than stock?

I'm thinking i can use something like (http://www.quadratec.com/products/16030 ... Anp48P8HAQ) this to get away from the stem mount and open up more shock options for the front.
2002 Trooper TOD, - ARB bumper, LED spotlights, AISIN manual hubs, 2" OME suspension lift, 33x10.5x15 BFG KM2 mud terrains, Pro Comp steelies, blacked out, Warn Zeon 10S, more to come
2005 Jeep Rubicon - lots of lift and 35s (SOLD)
2002 Ford Ranger 4x4 - 3" body lift, 2" suspension lift, 33x12.5x15 Cooper STT, Riddler diff armor, custom rear bumper
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Re: Longer Shocks for your Lifted Isuzu

Postby nasty610 » Fri Jan 27, 2017 1:26 pm

Those adapters won't work. They will force you to use a shorter then stock shock which will limit your options.
1996 Isuzu Trooper Base model
Front t-bar crank, Rear lifted with 1st gen Grand Cherokee Coils, Cooper Discovery AT3 265/75R16
1991 Trooper Base Model
HD Sway-a-Way torsion bars, Sweet Camo Paint(adds 50 hp), Snowflakes w/ Firestone Destination LE2 265/75r16
Lift Coil Spring Options
Add-a-Leaf kits and Part Numbers
Longer Shocks for your Lifted Isuzu
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Re: Longer Shocks for your Lifted Isuzu

Postby haruspex84 » Fri Jan 27, 2017 7:45 pm

nasty610,

What about those adapters on the rear with a stock length shock and 2.5" lift springs? I had purchased a set of Koni heavy track shocks for a 96 trooper to replace my Axiom electric controlled shocks, when they arrived they had the loop style mount (I guess some troopers had that style mount rather than the stud mount?) I assumed the extra inch of length would work with my OME 913 springs.
1994 Trooper S: OME 929 Springs, Daystar Spacers, Dobinsons HD Torsion Bars, Koni Heavy Track Shocks, Classic City Overland HD Rear Links, HD Transmission mount, Spring Retainers,TeraLow 3:1 transfer case gears, Surco Safari Rack

R.I.P. :( 2002 Axiom XS 4WD: OME 913 Springs, Koni Heavy Track Shocks, Independent4x HD Torsion bars, Energy Suspension Sway Bar Mounts
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Re: Longer Shocks for your Lifted Isuzu

Postby nasty610 » Fri Jan 27, 2017 8:57 pm

1g Troopers came with a upper post mount in the rear. The 1g Rodeos and Amigos used the exact same shock. 92-02 Troopers used thru bolt mounts upper and lower. Honestly unless you're going for max flex a stock length shock will work fine in the rear at that lift. I used stock replacement on mine and had zero problems.
1996 Isuzu Trooper Base model
Front t-bar crank, Rear lifted with 1st gen Grand Cherokee Coils, Cooper Discovery AT3 265/75R16
1991 Trooper Base Model
HD Sway-a-Way torsion bars, Sweet Camo Paint(adds 50 hp), Snowflakes w/ Firestone Destination LE2 265/75r16
Lift Coil Spring Options
Add-a-Leaf kits and Part Numbers
Longer Shocks for your Lifted Isuzu
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Re: Longer Shocks for your Lifted Isuzu

Postby McMoneyPit_2 » Sun Jan 29, 2017 12:44 pm

Do you know what the extended and compressed lengths are for the 2002 Trooper front shocks?
2002 Trooper TOD, - ARB bumper, LED spotlights, AISIN manual hubs, 2" OME suspension lift, 33x10.5x15 BFG KM2 mud terrains, Pro Comp steelies, blacked out, Warn Zeon 10S, more to come
2005 Jeep Rubicon - lots of lift and 35s (SOLD)
2002 Ford Ranger 4x4 - 3" body lift, 2" suspension lift, 33x12.5x15 Cooper STT, Riddler diff armor, custom rear bumper
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Re: Longer Shocks for your Lifted Isuzu

Postby nasty610 » Sun Jan 29, 2017 12:49 pm

Front shocks are exactly the same regardless of model or year. I don't know the measurement off hand but I do know Isuzu spec'd a longer travel front shock then just about any manufacturer. I'd suggest getting on Rock Auto and looking at the specs for OE replacement shocks. They will be close enough to get you started.
1996 Isuzu Trooper Base model
Front t-bar crank, Rear lifted with 1st gen Grand Cherokee Coils, Cooper Discovery AT3 265/75R16
1991 Trooper Base Model
HD Sway-a-Way torsion bars, Sweet Camo Paint(adds 50 hp), Snowflakes w/ Firestone Destination LE2 265/75r16
Lift Coil Spring Options
Add-a-Leaf kits and Part Numbers
Longer Shocks for your Lifted Isuzu

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Re: Longer Shocks for your Lifted Isuzu

Postby DirtroadVa » Tue Feb 28, 2017 2:28 am

Thank you for the information you posted. It is always a help to see this kind of post.
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Re: Longer Shocks for your Lifted Isuzu

Postby Dingbat » Tue Feb 28, 2017 1:44 pm

IIRC front Rodeo/Passport shocks are 9.5" compressed - 14.5" extended but I could be off base
1997 UCS7VF (Rodeo / Passport / Frontera)
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Re: Longer Shocks for your Lifted Isuzu

Postby Sleeth21 » Wed Jun 21, 2017 8:39 pm

92 rodeo xs here. Doing add a leaf in the rear and 6.5 shackels. wanting to get rancho 9000 and want to male sure i get the right ones. So will all these shocks listed work with my lift?

82-91 Trooper & 92-97 Rodeo Rear ONLY
80-89 Toyota Land Cruiser Front shocks
91-98 Toyota Land Cruiser rear shocks--ext bump stops 1"
1/98-06 Toyota Land Cruiser Rear shock--ext bump stops .5"
00-06 Toyota Tundra 4wd rear shocks-.5-1"
08-15 Toyota FJ Cruiser rear shocks-ext bump stops 1"
07-16 Toyota Tundra Shocks--ext bump stops 2"
99-06 Mitsubishi Montero rear shocks--ext bump stops 1.5"
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Re: Longer Shocks for your Lifted Isuzu

Postby nasty610 » Thu Jun 22, 2017 7:01 am

I don't know. I made the list to show possible shocks to be used. It's up to the end user to do the math and figure out which shock they need for their setup.
1996 Isuzu Trooper Base model
Front t-bar crank, Rear lifted with 1st gen Grand Cherokee Coils, Cooper Discovery AT3 265/75R16
1991 Trooper Base Model
HD Sway-a-Way torsion bars, Sweet Camo Paint(adds 50 hp), Snowflakes w/ Firestone Destination LE2 265/75r16
Lift Coil Spring Options
Add-a-Leaf kits and Part Numbers
Longer Shocks for your Lifted Isuzu
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Re: Longer Shocks for your Lifted Isuzu

Postby Johnny V » Sun Jul 02, 2017 10:42 am

I'll copy and paste this from one of my threads. These shocks have been on the truck for around 500 miles or so and are absolutely perfect. 2001 Rodeo.

Pro Comp 915510 ES9000's will work up front with a little help. You will need to cut about 1/4" of the lower rubber and sleeves off because they are just a touch too wide for the factory mounts. I used an angle grinder. You do not have to cut any of the shock body, only the grommet and sleeve. The OEM Isuzu shocks are about 9 1/2" compressed, 14 3/4" extended. The 915510's are 10.02" and 15.69". There are no clearance issues.

Pro Comp 921515's will work on the rear. The factory rears are about 12" collapsed and 19" extended. The 921515's are 13.06" and 21.75". These will work but you will have to make a few changes. First, you'll need to re-use one of your OEM upper mount bushings. It is about half as thick as the ones Pro Comp provides. If you don't, you won't have any threads showing on the shock stud. Put the OEM bushing on the shock stud, install the shock, then use the Pro Comp bushing and washer on the top and tighten down the nut. On the lower mount you'll need to add about 1/4" washer before you install the shock. It doesn't rub without it, but its too close for comfort. The 921515 comes with t-bar mounts. You'll have to remove these. I just used a C-clamp and pair of pliers. The front shocks came with two sizes of sleeves. You'll use the small sleeve for the fronts. The rears won't come with any sleeves. The big sleeves that the front comes with is just a little too small for the rear shock mount. I slid a tapered punch in it and opened it up just a little. I pressed it into the shock's bushing after I opened it enough to slide over the mount.


These have fairly substantially bigger bores and rods. The ride is great, the preload on the rears will pick the truck up some. It takes about 100lbs to compress the rears. I got 265-70-16 Terra Grapplers on it with no rubbing at any point lock to lock. The torsion bars were tightened about 3 turns or so and I removed the mud flaps. No other mods to the ride height as of yet. It will be getting a set of Trooper rear springs when I swap out the diff with a Trac Loc/disk model in the upcoming weeks and I'll let you know how the clearance is.
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Re: Longer Shocks for your Lifted Isuzu

Postby jliveit » Wed Feb 24, 2021 12:21 am

So 1998+ Rodeo and 1998+ Trooper Front shocks are interchangeable? I checked RockAuto for the compressed & extended shock lengths for both Rodeo's and Troopers of this generation and they seem around 0.5" to 0.75" different. Keep in mind when I check the specs for different brand shocks specified for just the Rodeo there is around 0.5" differences between compressed & extended lengths for some. So, I am not sure what the tolerances are from the factory, but I would guess this around 0.5" extra in extended length or 0.5" less in compressed length is fine for the vehicle.

But, I noticed Rockauto lists different part numbers for the same brand and model of shocks: KYB, Bilstein, Monroe, etc, between the Rodeo and Trooper. So if they are truly interchangeable, why the differing part numbers?
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Re: Longer Shocks for your Lifted Isuzu

Postby HONDEO » Sun Mar 21, 2021 5:39 pm

I'm confirming the 00-06 Toyota Tundra 4wd rear shocks does indeed fit the 2nd gen Rodeo/Passports with a 2-2.5" lift. It fit my '98 Passport with the lower shock mount bushing changed. I'm posting here in case anyone searches for options in the future. I can't never find what the 2nd gen Rodeo guys run when they lift their rigs.

2-2.5" lift. 2nd gen Rodeo/Passports.

Front lift: Torsion cranked (Turn the big torsion key bolt clockwise - hint measure the stud sticking out on top)
Front shocks: Keep stock replacement shocks as OP stated. I run Bilstein F 24-185363

Rear lift: Moog CC247 Cheap replacement spring that is roughly 2.5" longer than stock. Almost same spring rate.
Rear shocks: Bilstein #24-185394. 2-2.5" longer than OE shocks. Press out lower bushing with a ball joint press. Replaced bushing with Energy Suspension 9.8108G 3/4" bushing. Also add Dexter K7129100 14mm ID bushing sleeve. It will fit into the factory axle mounted stud. The sleeve is 44.45mm long, trim it down to 40mm and it will be flushed with the smooth section of the axle mounted stud. The top stem bushings that comes with the shock are too small and cannot be use. Keep the thick OE top bushings.
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