Compiled 80 series suspension component spec thread... shocks, coils & more.

rghouse

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Mar 1, 2015
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Oroville, CA
Nice work, thanks much. OEM lift? Didn’t know that. Anyone know how Toyota modified the suspension to achieve the 45/25 height quoted above?
 
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SacTown!
OEM shocks or OEM shocks will "work" with almost any lift, down travel/droop might be severely limited. Which as far as I can tell all 2 inch lift has OEM shock length, anything beyond that the brake lines need to be extended.
 

bajaphile

Boojum Hugger
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Apr 6, 2008
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Solana Beach, CA
I've been playing around with my suspension again and will document my current lift height and components for future reference.

Front:
4" Dobinson's Flexi Coils (C59-614V) which are around 1.5 years old
Icon 2.5" VS (for 4-6" suspension lit) RR (57803P) no CDV
Front Drivers : 25.25" (Center of hub to bottom of fender)
Front Passenger : 25.00"

Aftermarket weight deltas : Front Metal Tech tube bumper +75 lbs, 10k winch +50lbs, 2nd battery +35lbs. Running Tom Woods DC front shaft and Slee caster correction plates. Very happy with front setup. Plush and balanced on-road and off. Planning on swapping to 3" flexi coils to bring it down an inch.

Rear:
4" Slee Medium Coils (Passenger side requires 30mm spacer to be level)
Fox 2.0" RR Custom Valved shocks from DSM
Airlift airbags
Rear Drivers : 24.5" (5psi unloaded bags)
Rear Passenger: 24.25" (5 psi unloaded bags)

Aftermarket weight deltas in rear : "Sean's" Dual swing out rear bumper +160lbs, 35" Toyo MT spare +100lbs, 63qt fridge +75lbs constant weight. Cruiser is used several times a year for dry camping for 2 weeks at a time for 2 people and dog: 15 gal fuel, 15gal water, gear, food, etc. Uncertain on weights but it is enough to load down the truck to require 30psi in the bags to bring it up to avoid hitting bumpstops on desert roads.
 

baldilocks

Battle Ground, WA
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Jan 29, 2014
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5,052
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Battle Ground
I've been playing around with my suspension again and will document my current lift height and components for future reference.

Front:
4" Dobinson's Flexi Coils (C59-614V) which are around 1.5 years old
Icon 2.5" VS (for 4-6" suspension lit) RR (57803P) no CDV
Front Drivers : 25.25" (Center of hub to bottom of fender)
Front Passenger : 25.00"

Aftermarket weight deltas : Front Metal Tech tube bumper +75 lbs, 10k winch +50lbs, 2nd battery +35lbs. Running Tom Woods DC front shaft and Slee caster correction plates. Very happy with front setup. Plush and balanced on-road and off. Planning on swapping to 3" flexi coils to bring it down an inch.

Rear:
4" Slee Medium Coils (Passenger side requires 30mm spacer to be level)
Fox 2.0" RR Custom Valved shocks from DSM
Airlift airbags
Rear Drivers : 24.5" (5psi unloaded bags)
Rear Passenger: 24.25" (5 psi unloaded bags)

Aftermarket weight deltas in rear : "Sean's" Dual swing out rear bumper +160lbs, 35" Toyo MT spare +100lbs, 63qt fridge +75lbs constant weight. Cruiser is used several times a year for dry camping for 2 weeks at a time for 2 people and dog: 15 gal fuel, 15gal water, gear, food, etc. Uncertain on weights but it is enough to load down the truck to require 30psi in the bags to bring it up to avoid hitting bumpstops on desert roads.
Are you sure that your rear springs are in the proper location? The need for a 30mm spacer on either side seems odd especially on the passenger since the vehicle is naturally heavier on the driver side. I run Slee heavies and a 10mm spacer on the driver side rear to help level it laterally.
 

bajaphile

Boojum Hugger
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Solana Beach, CA
@baldilocks Yep, I use the slightly taller springs on drivers side... but after a year or so, the passenger drops down about 1". This is the 3rd time it has happened as I've swapped different springs. I think it is because my rear bumper is very heavy and the Toyo hangs off the passenger side.
 

rghouse

SILVER Star
Joined
Mar 1, 2015
Messages
348
Location
Oroville, CA
Just wanted to share my experience with the Dobinsons variables in 45mm lift height (220/269 combo). They raised my bone stock 1992 3FE about .75 inches, not 1.5-2” as advertised. I’ve measured them multiple times after 3 weeks of driving on them daily. I am de-flared and the hub-to-flare height is about 21-21.75 in front, and 21.5- 22 in rear. Before install the heights averaged 21”. I read stock height of about 20” with flares, 21” without (Though 3FE rumored to be taller).

I believe the 3fe is almost 600 lbs heavier than the 1fz so I’m guessing that is the culprit (door jam reads GVWR 6525, GAWR FRT 3305 RR 3970)
78FD03C0-7F64-4931-B0DE-A38B8569C13D.jpeg


AECF658F-83A2-4FF4-92F3-586279F54E58.jpeg
 
Last edited:

baldilocks

Battle Ground, WA
GOLD Star
Joined
Jan 29, 2014
Messages
5,052
Location
Battle Ground
Just wanted to share my experience with the Dobinsons variables in 45mm lift height (220/269 combo). They raised my bone stock 1992 3FE about .75 inches, not 1.5-2” as advertised. I’ve measured them multiple times after 3 weeks of driving on them daily. I am de-flared and the hub-ww height is about 21-21.75 in front, and 21.5- 22 in rear. Before install the heights averaged 21”. I read stock height of about 20” with flares, 21” without (Though 3FE rumored to be taller).

I believe the 3fe is almost 600 lbs heavier than the 1fz so I’m guessing that is the culprit (door jam reads GVWR 6525, GAWR FRT 3305 RR 3970) Seems to me I need some heavy duty coils instead. Tapered or dual rate? I thought I did enough research before hand but...

If a 3fe owner wants 1.5-2 inches of lift above stock height and will be running with 24 extra gallons of fuel and a winch on stuck bumper what’s he to get for his DD/adventure rig? Bummer to have to squeeze them out again and pay for shipping but I don’t think spacers are going to cut it. Thoughts? I need some guidance here cause I didn’t get it right.

View attachment 1928179

View attachment 1928180
Just wanted to share my experience with the Dobinsons variables in 45mm lift height (220/269 combo). They raised my bone stock 1992 3FE about .75 inches, not 1.5-2” as advertised. I’ve measured them multiple times after 3 weeks of driving on them daily. I am de-flared and the hub-ww height is about 21-21.75 in front, and 21.5- 22 in rear. Before install the heights averaged 21”. I read stock height of about 20” with flares, 21” without (Though 3FE rumored to be taller).

I believe the 3fe is almost 600 lbs heavier than the 1fz so I’m guessing that is the culprit (door jam reads GVWR 6525, GAWR FRT 3305 RR 3970) Seems to me I need some heavy duty coils instead. Tapered or dual rate? I thought I did enough research before hand but...

If a 3fe owner wants 1.5-2 inches of lift above stock height and will be running with 24 extra gallons of fuel and a winch on stuck bumper what’s he to get for his DD/adventure rig? Bummer to have to squeeze them out again and pay for shipping but I don’t think spacers are going to cut it. Thoughts? I need some guidance here cause I didn’t get it right.

View attachment 1928179

View attachment 1928180
Most, if not every, Dobinson spring has lifted the installers vehicle more than advertised. Your report is out of the norm.

Also, the 3fe does not weight 600# more than the 1fz. That would put the 3fe at nearly 1200#. The 3fe might weigh 100# more. Someone here knows for sure.
 
Joined
Jan 10, 2017
Messages
1,090
Location
New England, USA
Just wanted to share my experience with the Dobinsons variables in 45mm lift height (220/269 combo). They raised my bone stock 1992 3FE about .75 inches, not 1.5-2” as advertised. I’ve measured them multiple times after 3 weeks of driving on them daily. I am de-flared and the hub-ww height is about 21-21.75 in front, and 21.5- 22 in rear. Before install the heights averaged 21”. I read stock height of about 20” with flares, 21” without (Though 3FE rumored to be taller).

I believe the 3fe is almost 600 lbs heavier than the 1fz so I’m guessing that is the culprit (door jam reads GVWR 6525, GAWR FRT 3305 RR 3970) Seems to me I need some heavy duty coils instead. Tapered or dual rate? I thought I did enough research before hand but...

If a 3fe owner wants 1.5-2 inches of lift above stock height and will be running with 24 extra gallons of fuel and a winch on stuck bumper what’s he to get for his DD/adventure rig? Bummer to have to squeeze them out again and pay for shipping but I don’t think spacers are going to cut it. Thoughts? I need some guidance here cause I didn’t get it right.

View attachment 1928179

View attachment 1928180

From you numbers, it sounds like your rig was tall to start and the Dobinsons gave you the height they advertised. (Very close to what OME 2" mediums gave me) How much more height do you want, in terms of center to hub measurement? If it's less than an inch, I'd just get a quality spacer set.

Your paint looks good, btw.
 

rghouse

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Joined
Mar 1, 2015
Messages
348
Location
Oroville, CA
Since the standard center-of-hub measurement is not applicable to non-flare rigs I’ve included my bump stop lengths. Anyone ever measured the length a flare hangs down below the body? Would be helpful. This must be one reason the factory uses the inside coil measurement (on pg1).

So here are the numbers (mm) following the 45mm “lift” taken inside the coils as per factory protocols:

LF 47
RF 51
LR 57
RR 55

Any body got comps for this? OME or otherwise.

What came off:
L(mm)=
RR: wht/blu 460, grn/or 445

FR: blu/pk/wht 530, gr/wht 528

DE43442B-764A-4BCD-A96C-96162AE93AE1.jpeg
A5807E6C-D98B-4277-807D-7C2190977CA7.jpeg
 

crikeymike

Dobinsons Spring & Suspension USA
Supporting Vendor
 
Joined
Jun 6, 2005
Messages
583
Location
Miami, Florida
From you numbers, it sounds like your rig was tall to start and the Dobinsons gave you the height they advertised. (Very close to what OME 2" mediums gave me) How much more height do you want, in terms of center to hub measurement? If it's less than an inch, I'd just get a quality spacer set.

Your paint looks good, btw.
That's what I feel too. The lift height does look correct, as compared to this guy too, running 2" coils front and rear with stock size tires, although heavier load coils to suit the early engine and rear swing out on the back

1990 HDJ81 c59166.c59167.jpeg
 

rghouse

SILVER Star
Joined
Mar 1, 2015
Messages
348
Location
Oroville, CA
As a reference for others, I measured the flare body holes and distance on flare b/w stud and bottom. According to my measurements:

the rear flares hang down 15 mm (95mm: hole to fender rim, 110 stud to bottom of flare at center hole)
the front flares hang down 5-10 mm, (they are curved a bit) spanning 30mm hole to fender bottom and 40 stud to flare bottom
 
Joined
Jan 10, 2017
Messages
1,090
Location
New England, USA
As a reference for others, I measured the flare body holes and distance on flare b/w stud and bottom. According to my measurements:

the rear flares hang down 15 mm (95mm: hole to fender rim, 110 stud to bottom of flare at center hole)
the front flares hang down 5-10 mm, (they are curved a bit) spanning 30mm hole to fender bottom and 40 stud to flare bottom

FWIW, I am also flareless. So my measurements should be comparable to yours.
 
Joined
Jan 28, 2016
Messages
8
Location
Christchurch, New Zealand
Hi All

I am just going through the process of setting up a 4" lift on my 80 and I got a lot of details about the Dobinson springs I was interested in that I thought others might find useful. I converted all spring rates from N/mm to lbs/inch.

Dobinson Springs (Front)Free spring height (mm)Spring rate (lbs)Part Number
4” lift Flexi565mm RH & 567mm LH182 - 275 lbsC59-614V
5” lift - Liner, no extra load615mm RH & 625mm LH235 lbsC59-444
3” lift Tapered605mm RH & 615mm LH314 - 342 lbsC97-144VT

Dobinson Springs (Rear)Free spring height (mm)Spring rate (lbs)Part Number
4” lift Flexi570mm RH & 580mm LH148 - 275 lbsC59-615V
4” lift HHD545mm RH & 555mm LH318 lbsC59-313
4” lift HD520mm RH 530mm LH274 lbsC59-309
3” lift Tapered535mm RH 545mm LH285 - 342 lbsC95-145VT
 
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