User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 08-03-2021, 03:13 AM #1
hallcs hallcs is offline
Banned
 
Join Date: Feb 2017
Posts: 155
hallcs will become famous soon enough
hallcs hallcs is offline
Banned
 
Join Date: Feb 2017
Posts: 155
hallcs will become famous soon enough
Dobinsons IMS 2.5" Lift which rear springs 1.5 or 2"

2021 4runner venture. I have narrowed my choice for my lift down to Dobinsons 2.5" IMS lift (with UCA's). Dobinsons Direct says 1.5" rear spring will level the rig. Mainly just daily driving, nothing in rear, never adding weight (bumpers ect...) may tow something in the future but it would be a once and done. Anyone had experiance with a Dobinsons 2.5/1.5 or a 2.5/2 just hopeful for advice from people that have done the same lift on which rear springs to pick.

Last edited by hallcs; 08-03-2021 at 04:34 AM. Reason: spelling
hallcs is offline   Reply With QuoteReply With Quote
Old 08-03-2021, 12:56 PM #2
Tuco S.'s Avatar
Tuco S. Tuco S. is offline
Member
 
Join Date: Mar 2019
Location: Las Vegas, NV
Posts: 288
Tuco S. has a spectacular aura about Tuco S. has a spectacular aura about Tuco S. has a spectacular aura about
Tuco S. Tuco S. is offline
Member
Tuco S.'s Avatar
 
Join Date: Mar 2019
Location: Las Vegas, NV
Posts: 288
Tuco S. has a spectacular aura about Tuco S. has a spectacular aura about Tuco S. has a spectacular aura about
If you're going with the IMS front struts, you can set (or raise, if you get pre-built fronts) the coil seats above the standard 213mm setting with or without KDSS. If your truck has KDSS you can also lower them below the standard 213mm setting. That's great info to know up front in case you get a set of coil springs that end up giving you a lot more lift than their marketing specs say you should get, which seems to be fairly common.

In my case, I went with the C59-314 front coils (supposedly a 3" lift with a stock weight truck), but it gave me 4" of lift until I installed my steel skid plates. The front now sits at 3.75" which is at least an inch higher than what it should be. When the temperature dips down, I'm going to lower them to around 2.50" to 2.75" since my truck has KDSS. If I didn't have KDSS I would be stuck with a lift that is way too high.

I originally went with the C59-325 rear coils (supposed to be 2" lift with a stock weight truck) but they gave me almost 3" of lift until my fuel tank skid went on. I always have about 100 lbs of stuff in the back, but the rear now sits at 2.7" in the back. There is no way to lower the rear unless you install shorter coils, so I ordered a set of C59-505 (supposed to be 1.5" lift with a stock weight truck), but that is a whole other can of worms...

Anyway the truck drives great when I'm hauling 5 people plus gear, but if it's just me the ride is rough and bouncy as all hell. I think the IMS struts and shocks are excellent quality, but their coil springs are inconsistent. I suspect if I could test the coils the spring rates would be much higher than the quoted 586 lbf/in (front) and 220 lbf/in (rear).

Just saying, depending on your setup, you might want to opt for springs that are 1/2" to 1" shorter than what Dobinsons says they will be. You can always raise the front by raising the coil seats. You can also easily raise the rear with small trim spacers. If you get a slight rear lean, the trim spacer option is also good to level it out. Dobinsons only offers a 15mm rear trim spacer, but OME has several different ones (5mm, 10mm, 15mm etc).
__________________
2019 TRD Off Road w/KDSS in silver. Dobinsons IMS59-50700 & C59-314 front (coil seats lowered 1/2"), IMS59-50705 & C59-505 rear; Dobinsons diff drop; Ironman UCAs; Eimkeith PCK, Ironman adjustable panhard rod, and Treaty Oak KDSS spacers; Toyo Open Country A/T III 255/80R17; C4 Fab skids & Shrockworks sliders; Durobumps front & rear.

Last edited by Tuco S.; 08-03-2021 at 12:59 PM.
Tuco S. is offline   Reply With QuoteReply With Quote
Old 08-03-2021, 01:23 PM #3
hallcs hallcs is offline
Banned
 
Join Date: Feb 2017
Posts: 155
hallcs will become famous soon enough
hallcs hallcs is offline
Banned
 
Join Date: Feb 2017
Posts: 155
hallcs will become famous soon enough
Quote:
Originally Posted by Tuco S. View Post
If you're going with the IMS front struts, you can set (or raise, if you get pre-built fronts) the coil seats above the standard 213mm setting with or without KDSS. If your truck has KDSS you can also lower them below the standard 213mm setting. That's great info to know up front in case you get a set of coil springs that end up giving you a lot more lift than their marketing specs say you should get, which seems to be fairly common.

In my case, I went with the C59-314 front coils (supposedly a 3" lift with a stock weight truck), but it gave me 4" of lift until I installed my steel skid plates. The front now sits at 3.75" which is at least an inch higher than what it should be. When the temperature dips down, I'm going to lower them to around 2.50" to 2.75" since my truck has KDSS. If I didn't have KDSS I would be stuck with a lift that is way too high.

I originally went with the C59-325 rear coils (supposed to be 2" lift with a stock weight truck) but they gave me almost 3" of lift until my fuel tank skid went on. I always have about 100 lbs of stuff in the back, but the rear now sits at 2.7" in the back. There is no way to lower the rear unless you install shorter coils, so I ordered a set of C59-505 (supposed to be 1.5" lift with a stock weight truck), but that is a whole other can of worms...

Anyway the truck drives great when I'm hauling 5 people plus gear, but if it's just me the ride is rough and bouncy as all hell. I think the IMS struts and shocks are excellent quality, but their coil springs are inconsistent. I suspect if I could test the coils the spring rates would be much higher than the quoted 586 lbf/in (front) and 220 lbf/in (rear).

Just saying, depending on your setup, you might want to opt for springs that are 1/2" to 1" shorter than what Dobinsons says they will be. You can always raise the front by raising the coil seats. You can also easily raise the rear with small trim spacers. If you get a slight rear lean, the trim spacer option is also good to level it out. Dobinsons only offers a 15mm rear trim spacer, but OME has several different ones (5mm, 10mm, 15mm etc).
Thank you for the great information. The Dobinsons kit comes with the KDSS spacers. Great info on the springs, gives me something to research and like you say I can go 1.5 in the rear then adjust the fonts. Thanks
hallcs is offline   Reply With QuoteReply With Quote
Old 08-03-2021, 01:34 PM #4
Tuco S.'s Avatar
Tuco S. Tuco S. is offline
Member
 
Join Date: Mar 2019
Location: Las Vegas, NV
Posts: 288
Tuco S. has a spectacular aura about Tuco S. has a spectacular aura about Tuco S. has a spectacular aura about
Tuco S. Tuco S. is offline
Member
Tuco S.'s Avatar
 
Join Date: Mar 2019
Location: Las Vegas, NV
Posts: 288
Tuco S. has a spectacular aura about Tuco S. has a spectacular aura about Tuco S. has a spectacular aura about
My pleasure! The KDSS spacers from Treaty Oak are terrific. They do a great job of returning the sway bars close to their original position. I don't have any lean in front, and only a very slight lean in the right rear, but it's not noticeable to the naked eye.
__________________
2019 TRD Off Road w/KDSS in silver. Dobinsons IMS59-50700 & C59-314 front (coil seats lowered 1/2"), IMS59-50705 & C59-505 rear; Dobinsons diff drop; Ironman UCAs; Eimkeith PCK, Ironman adjustable panhard rod, and Treaty Oak KDSS spacers; Toyo Open Country A/T III 255/80R17; C4 Fab skids & Shrockworks sliders; Durobumps front & rear.
Tuco S. is offline   Reply With QuoteReply With Quote
Old 08-03-2021, 10:13 PM #5
smeerun's Avatar
smeerun smeerun is offline
Member
 
Join Date: Sep 2020
Location: Northern VA
Posts: 227
smeerun has a spectacular aura about smeerun has a spectacular aura about smeerun has a spectacular aura about
smeerun smeerun is offline
Member
smeerun's Avatar
 
Join Date: Sep 2020
Location: Northern VA
Posts: 227
smeerun has a spectacular aura about smeerun has a spectacular aura about smeerun has a spectacular aura about
If you're hunting for more info on the Dobinsons kits check out @Crikeymike 's thread: Dobinsons 5th Gen T4R Suspension options - lots of choices

Loads of info, pictures, etc. and Mike is very responsive!
__________________
[Smeerun's Build Log] - 2016 4Runner Trail Premium MGM w/KDSS

Exterior: Toyo OC A/T III 265/70/17 (TE Wheels) | Dobinsons UCA's + C59-302/GS59-700 Front + C59-500/GS59-705 Rear | C4 Rock Sliders | SSO Roof Rack | Ironman 8.5" Awning | Tacoma Low-Profile Antenna | Diode Dynamics SS3 Pro Fogs | CTH Folding Mirrors + LED Sequential Blinker Mirrors
Interior: VanTrue N4 3-chan Dashcam | Husky Liners Floor Mats | Canvasback Rear Covers | Blue Ridge "Attic"
smeerun is offline   Reply With QuoteReply With Quote
Old 08-04-2021, 07:39 AM #6
hallcs hallcs is offline
Banned
 
Join Date: Feb 2017
Posts: 155
hallcs will become famous soon enough
hallcs hallcs is offline
Banned
 
Join Date: Feb 2017
Posts: 155
hallcs will become famous soon enough
After 72 hours straight of research

After reading the comments and suggestions and 72 hours total of research from others posts. I decided on the Dobinsons IMS with the 2/1.5" springs for stock load, KDSS spacer and Dobinsons UCA ( Still Kinda torn on the UCA, JBA is like 300 cheaper if I have Dobinsons press my ball joint). Anyway I am not running any extra weight and will probably never tow and rarely go off road, so from what I have read those springs will level the 4runner and give me a nice ride. Now I just need a good SALE from Dobinsons, CC in hand...lol
hallcs is offline   Reply With QuoteReply With Quote
Old 08-04-2021, 02:25 PM #7
Tuco S.'s Avatar
Tuco S. Tuco S. is offline
Member
 
Join Date: Mar 2019
Location: Las Vegas, NV
Posts: 288
Tuco S. has a spectacular aura about Tuco S. has a spectacular aura about Tuco S. has a spectacular aura about
Tuco S. Tuco S. is offline
Member
Tuco S.'s Avatar
 
Join Date: Mar 2019
Location: Las Vegas, NV
Posts: 288
Tuco S. has a spectacular aura about Tuco S. has a spectacular aura about Tuco S. has a spectacular aura about
Quote:
Originally Posted by hallcs View Post
After reading the comments and suggestions and 72 hours total of research from others posts. I decided on the Dobinsons IMS with the 2/1.5" springs for stock load, KDSS spacer and Dobinsons UCA ( Still Kinda torn on the UCA, JBA is like 300 cheaper if I have Dobinsons press my ball joint). Anyway I am not running any extra weight and will probably never tow and rarely go off road, so from what I have read those springs will level the 4runner and give me a nice ride. Now I just need a good SALE from Dobinsons, CC in hand...lol
Nice! I think you'll be very happy with that setup. If you can wait for Black Friday they usually do something like a 10% to 15% off sale.
__________________
2019 TRD Off Road w/KDSS in silver. Dobinsons IMS59-50700 & C59-314 front (coil seats lowered 1/2"), IMS59-50705 & C59-505 rear; Dobinsons diff drop; Ironman UCAs; Eimkeith PCK, Ironman adjustable panhard rod, and Treaty Oak KDSS spacers; Toyo Open Country A/T III 255/80R17; C4 Fab skids & Shrockworks sliders; Durobumps front & rear.
Tuco S. is offline   Reply With QuoteReply With Quote
Old 08-06-2021, 04:57 PM #8
hallcs hallcs is offline
Banned
 
Join Date: Feb 2017
Posts: 155
hallcs will become famous soon enough
hallcs hallcs is offline
Banned
 
Join Date: Feb 2017
Posts: 155
hallcs will become famous soon enough
Quote:
Originally Posted by Tuco S. View Post
Nice! I think you'll be very happy with that setup. If you can wait for Black Friday they usually do something like a 10% to 15% off sale.
Mike over at Exitoffroad gave me a good price so now it's just a waiting game. Shouldn't be long.
hallcs is offline   Reply With QuoteReply With Quote
Old 12-28-2023, 09:31 PM #9
4 RunnerBoxer 4 RunnerBoxer is offline
Member
 
Join Date: Apr 2023
Location: Indiana
Posts: 33
4 RunnerBoxer is on a distinguished road
4 RunnerBoxer 4 RunnerBoxer is offline
Member
 
Join Date: Apr 2023
Location: Indiana
Posts: 33
4 RunnerBoxer is on a distinguished road
My dilemma as well. Like the Dobinson IMS but still debating what set up to get.

302 front, 505 rear? Or 302 front, 325 rear. I like to keep some factory rake. But of course don’t want to increase the rake. And definitely do not want the reverse rake, which many “leveled “ 4Runners seem to look like have. As poster above, I do not plan on adding any aftermarket number, winches, roof racks, tents, rock sliders. Just want lift for better performance on and off light road, better stance, fit 285 tires.
4 RunnerBoxer is offline   Reply With QuoteReply With Quote
Old 07-09-2024, 10:41 AM #10
GoneMTB GoneMTB is offline
Junior Member
 
Join Date: Jul 2024
Location: Acworth
Posts: 1
GoneMTB is on a distinguished road
GoneMTB GoneMTB is offline
Junior Member
 
Join Date: Jul 2024
Location: Acworth
Posts: 1
GoneMTB is on a distinguished road
505 or 325?

What did you end up going with? I am researching and in the same boat!

Quote:
Originally Posted by 4 RunnerBoxer View Post
My dilemma as well. Like the Dobinson IMS but still debating what set up to get.

302 front, 505 rear? Or 302 front, 325 rear. I like to keep some factory rake. But of course don’t want to increase the rake. And definitely do not want the reverse rake, which many “leveled “ 4Runners seem to look like have. As poster above, I do not plan on adding any aftermarket number, winches, roof racks, tents, rock sliders. Just want lift for better performance on and off light road, better stance, fit 285 tires.
GoneMTB is offline   Reply With QuoteReply With Quote
Reply

Tags
dobisons , ims , lift , rear , springs

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
WTB: 5th gen rear lift springs >= 2" bigmace Want to Buy/Trade 2 05-29-2019 01:09 PM
Bilstein 6112 2.5" Front Lift, 2" Toytec Rear Springs with either FOX or ICONs..?? fromLRtoT4R 4th Gen T4Rs 13 05-17-2019 05:02 PM
OME 906 Rear 2" lift springs $140 (Colorado Springs) 99 sr5 highlander For Sale: Suspension/Wheels/Tires 2 06-28-2015 11:13 PM
Wtb: 1-2" lift rear springs 4th gen Ghostrunnerr Want to Buy/Trade 1 01-31-2014 06:02 PM
Have question on rear springs "lift issue" ohio4runner4x4 3rd gen T4Rs 2 11-16-2007 11:20 AM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 05:25 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
***This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. All company, product, or service names references in this web site are used for identification purposes only and may be trademarks of their respective owners. The Toyota name, marks, designs and logos, as well as Toyota model names, are registered trademarks of Toyota Motor Corporation***Ad Management plugin by RedTyger
 
Copyright © 2020