There has been another thread going on about taller OE rear stock 91-92 bump stops that turned into some a alternate Timbren options for the 80 series.
I will leave this here.
For stock rear frame bump stops, I conservatively recommend to lower bumps 1.5" for 35s & 2.5" for 37s. Also knowing a stock frame bump will be approx. 2.5" tall when compressed. We also now know how tall the Timbren AOR bump stop is when compressed is 1.5" compressed. Now we do simple math...
forum.ih8mud.com
A few folks have shared the rear 100 series AOR bump stop kit #ABSTORSEQ fits the 80 series better than the 80 series kit does.
Shoredreamer wrote:
Timbrens on the rear for me as well. Pretty sure I took the idea from
@Corbet 
Used the 100 series model and spaced it down with
@Hitit66 frame bump spacer. Matches well with the 17.5” compressed shocks and 35s I run. The Timbrens basically are replacing both the stock frame bump and coil bumper. Waiting to get the Dobinsons rear hydro bumps when they are available.
These are the rear AOR Timbrens for an 80 series.
They are way to tall, the bracket appears to be just under 4.5" tall & needs to be cut down for anything under a 40" tires. (I believe BoxRocket cut his down to 3")
Box Rocket wrote:
Those look like a great option if you didn't have access to a welder. I had the "normal" 80 series Timbrens with the uber tall rear towers. I cut them down and rewelded to about 3" from the frame to where the rubber starts. So maybe a bit taller than yours. Has worked great with the 37's and being airborne a few times.

Kabanstva Wrote:
Looks like the 100 rear Timbren bracket is also 1.25” (def not 1.5”) and about 5” altogether (metal bracket and rubber bump). I got the Timbrens from Nitro Gear Just Differentials 2 years ago for reference. Sorry pics aren’t great and tape measure slipped (the tip is actually slightly above the bottom of the vehicle’s frame).
Shoredreamer wrote:
I’m seeing 3 options for our 80s, maybe more, on the rear axle department with Timbren Aeon springs
ABSTORLC1, Active Off-Road bumpstop with the super tall metal tower and additional metal cup, using the A515-55 spring, 2,400# bump capacity
TORLC1, SES (towing application) with super tall metal tower, using the A535-65 spring, 6,500# bump capacity
TORSEQ, 100 series rear SES (towing app) with short metal tower, using the A550-65 spring, 11,500# bump capacity
Not sure how this translates into function exactly, other than the fact that the TORSEQ seems like it can take a harder hit than the AOR bump TORLC1.
GW Nugget wrote:
Yep & to add, these are the bolt on non welding "KIT" options:
FRONT:
80 series front AOR #ABSTOFLC1A uses a A00515-55P30 - 2,400 lbs. AEON spring.
80 series front SES #TOFLC1A uses a A00515-65P30 - 4,000 lbs. AEON spring.
REAR:
100 series rear AOR #ABSTORSEQ uses a #A00515-55F60 - 2,400 lbs. AEON spring.
100 series rear SES #TORSEQ uses #A550-65 spring, 11,500# bump capacity AEON spring.
~~~~~~~~
Just for reference on what shoredreamer is communicating:
80 series front AOR #ABSTOFLC1A uses a A00515-55P30 - 2,400 lbs. AEON spring.
Active Off-Road Bumpstops for Toyota Landcruiser - Front Kit
80 series front SES #TOFLC1A uses a A00515-65P30 - 4,000 lbs. AEON spring.
Timbren SES Suspension Enhancement System SKU# TOFLC1A - Front Kit
80 series rear AOR #ABSTORLC1 uses a #A00515-55F60 - 2,400 lbs. AEON spring.
Active Off-Road Bumpstops for Toyota Landcruiser 70 & 80 series - Rear Kit
80 series rear SES #TORLC1 uses a #A00535-65E60 - 6,500 lbs. AEON spring.
Timbren SES Suspension Enhancement System SKU# TORLC1 - Rear Kit
100 series rear AOR #ABSTORSEQ uses a #A00515-55F60 - 2,400 lbs. AEON spring.
Active Off-Road Bump Stops SKU# ABSTORSEQ - Rear Kit
100 series rear SES #TORSEQ uses #A550-65 spring, 11,500# bump capacity AEON spring.
Timbren SES Suspension Enhancement System SKU# TORSEQ - Rear Kit
~~~~~~
Here is a chart I found for the Front/Rear 80 series AOR & the 100 series rear. #A515-55 has a 2,400 lb load cap.
Type: A515-55
Nominal Rated Capacity: 1,000#
Bump Load Capacity: 2,400#
Nominal Height
(A): 3-3/4"
Nominal O.D.
(B): 3-3/8"
Maximum Deflected Height
(C): 1-1/2"
Maximum Deflection
(A)-
(C): 2-1/4"
Maximum Diameter
(D): 4-7/8"
Type: A515-65 is a 80 series SES front AEON spring
Nominal Rated Capacity: 1,500#
Bump Load Capacity: 4,000#
Nominal Height
(A): 3-3/4"
Nominal O.D.
(B): 3-3/8"
Maximum Deflected Height
(C): 1-1/2"
Maximum Deflection
(A)-
(C): 2-1/4"
Maximum Diameter
(D): 4-7/8"
*****chart coming soon******
Here is a chart I found for the 80 series rear SES #TORLC1 uses a #A00535-65E60 - 6,500 lbs. AEON spring.
Type: A535-65
Nominal Rated Capacity: 3,000#
Bump Load Capacity: 6,500#
Nominal Height
(A): 5-1/8"
Nominal O.D.
(B): 3-5/16"
Maximum Deflected Height
(C): 2"
Maximum Deflection
(A)-
(C): 3-1/8"
Maximum Diameter
(D): 6-1/4"
~~~~~~~~~
Found this if you want to DIY your own AEON bump/springs.
More resource info:
This is an official Timbren pdf. chart.
Hydro bump stops
forum.ih8mud.com
The Front:
I Emailed Timbren & got specs for the 80 series AOR bumps.
3.75" free/1.5" compressed/deflected
The front bracket is 1.25" tall.
View attachment 3082838
#A515-65
View attachment 3082845