Rear Bump Stop Types

Kabanstva

SILVER Star
Joined
Jan 31, 2016
Messages
2,564
Location
Illinois
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... for the AOR bump stop to equal the OE stock bump would need a bracket 1" tall.
I know the 80 series front AOR bracket is 1.25" tall.
@Shoredreamer how tall is the Timbren 100 series rear bracket. (looks like 1.5" to me)
I got Timbrens on my 470. I can measure tonight if Shore doesn’t respond first.
 
Joined
Jan 6, 2008
Messages
55
Location
Taft, TN
For stock rear frame bump stops, I conservatively recommend to lower bumps 1.5" for 35s & 2.5" for 37s.
@Shoredreamer how tall is the Timbren 100 series rear bracket. (looks like 1.5" to me)
This gets back at my original post. Stock rear bump stops are not all the same height. One appears to be about .75" longer
 

GW Nugget

Do the best you can with what you have...
GOLD Star
Joined
Jul 25, 2014
Messages
3,570
Location
Coalinga, CA
Website
forum.ih8mud.com
This gets back at my original post. Stock rear bump stops are not all the same height. One appears to be about .75" longer
Can we all assume the 91-92 is different from 93-97.
When I make statements about bump stops I am referring to the 1FZ-FE fzj80 series suspension.
Pic below suggest the 3FE crowd is different to the 1FZ-FE crowd.
I would guess the bump stops were taller in the rear...
What is heavier a 3-FE or a 1FZ-FE?
20171130_120609-png.1763971
 
Last edited:

Kabanstva

SILVER Star
Joined
Jan 31, 2016
Messages
2,564
Location
Illinois
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... for the AOR bump stop to equal the OE stock bump would need a bracket 1" tall.
I know the 80 series front AOR bracket is 1.25" tall.
@Shoredreamer how tall is the Timbren 100 series rear bracket. (looks like 1.5" to me)
Looks like the 100 rear Timbren 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).

A58FBCB7-CE6B-42F3-89AD-13CB807665D8.jpeg


B86B819D-0EA6-47B4-9F91-C8106899AB7B.jpeg
 
Last edited:

lumbee1

Native American
Joined
Sep 21, 2011
Messages
3,928
Location
Holly Springs, NC
Does anyone have any direct comparison between the 70series bumpstops and the timbren's? 70 series bumpstops are longer and should have more compaction resulting in a softer "bump" than the stock bumpstops. The timbrens look to be an awesome solution but there's a $136 difference between the two solutions $89 (partsouq) vs $225 (just differentials).
 

lumbee1

Native American
Joined
Sep 21, 2011
Messages
3,928
Location
Holly Springs, NC
Does anyone have any direct comparison between the 70series bumpstops and the timbren's? 70 series bumpstops are longer and should have more compaction resulting in a softer "bump" than the stock bumpstops. The timbrens look to be an awesome solution but there's a $136 difference between the two solutions $89 (partsouq) vs $225 (just differentials).
Found a pair of 70 series bumpstops for $66 and bought them.
 

GW Nugget

Do the best you can with what you have...
GOLD Star
Joined
Jul 25, 2014
Messages
3,570
Location
Coalinga, CA
Website
forum.ih8mud.com
Please report back fitment and functionality.
These are 79 series.
Fitment & functionality... The holes have to be notched out & bolt hang on half way, advise a large washer to sandwich them. They are softer then stock, but not much though. They do stop 1" more than stock. The shims are .25" each... so your looking at 1.5" taller than stock set up in the picture.
20200113_235915.jpg
 
Last edited:

lumbee1

Native American
Joined
Sep 21, 2011
Messages
3,928
Location
Holly Springs, NC
Fitment & functionality... The holes have to be notched out & bolt hang on half way, advise a large washer to sandwich them. They are softer then stock, but not much though. They do stop 1" more than stock. The shims are .25" each... so your looking at 1.5" taller than stock set up.
View attachment 3077970
Thanks! I figured with the physically taller block of rubber, they would be more forgiving that stock. I actually want the taller bumpstop since my factory bumpstops are spaced too far down at the moment and limit my travel.
 

GW Nugget

Do the best you can with what you have...
GOLD Star
Joined
Jul 25, 2014
Messages
3,570
Location
Coalinga, CA
Website
forum.ih8mud.com
Looks like the 100 rear Timbren 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).
1.25"
Great, thank you. This is all is going into the Compiled suspension thread ASAP.
Sad thing is Timbren AOR bumps are going up to $297


Sidebar question, as I dig deeper on these Timbren AOR & SES rubber springs, I'm learning there are a bunch of sizes they have with different load capacities.
My question is when hitting pot holes, going through very rough
terrain to absolute hitting a wash out to catching a few inches to feet of airtime... how many pounds of force do you think is pounding a bump stop. If an 80 series is 6000lbs then divide by 4 equals 1500lbs per corner just sitting under it own weight then hitting something at speed would be 6K-10K range.

So, @Shoredreamer @Box Rocket @woody & whoever has the 80/100 series Timbren bump/springs, have you ever hit anything hard enough & think that those bumps could be a bit firmer or do you think Timbren "Nailed it" with the correct bump/spring rate for the 80 series with the A515-55 2,400# AOR bump/spring?
I have 2 sets of 2,400# AOR on order... found them on the cheap before they went past the $300 per price point.
 
Last edited:

Outsane

Supporting Vendor
Joined
Oct 1, 2010
Messages
1,708
Location
San Mateo, CA
Website
solvefunction.com
Kong extreme are about 5in extended after mounting. There are other sizes of kongs also.
20220805_065834.jpg


The base extension can be made at any size mine are at 2in.

20220805_065843.jpg


You can also buy a pair for $32 Amazon prime.


I also have bump stop extensions for any other bump stops, these are also stackable.



 
Joined
Aug 28, 2014
Messages
782
Location
Santa Cruz
@GW Nugget
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

Do the best you can with what you have...
GOLD Star
Joined
Jul 25, 2014
Messages
3,570
Location
Coalinga, CA
Website
forum.ih8mud.com
@GW Nugget
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.
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
1659774549223.png

80 series front SES #TOFLC1A uses a A00515-65P30 - 4,000 lbs. AEON spring.
Timbren SES Suspension Enhancement System SKU# TOFLC1A - Front Kit
1659774922284.png

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
1659774831252.png

80 series rear SES #TORLC1 uses a #A00535-65E60 - 6,500 lbs. AEON spring.
Timbren SES Suspension Enhancement System SKU# TORLC1 - Rear Kit
1659773926503.png

100 series rear AOR #ABSTORSEQ uses a #A00515-55F60 - 2,400 lbs. AEON spring.
Active Off-Road Bump Stops SKU# ABSTORSEQ - Rear Kit
1659775707347.png

100 series rear SES #TORSEQ uses #A550-65 spring, 11,500# bump capacity AEON spring.
Timbren SES Suspension Enhancement System SKU# TORSEQ - Rear Kit
1659775787971.png

~~~~~~
Here is a chart I found for the Front/Rear 80 series & the 100 series rear AOR #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"
Screenshot_20220805-174640.jpg

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"
1659786064057.png

Type: A515-65 used on 80 series front SES
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"
20220806_223042.jpg
 
Last edited:

GW Nugget

Do the best you can with what you have...
GOLD Star
Joined
Jul 25, 2014
Messages
3,570
Location
Coalinga, CA
Website
forum.ih8mud.com
Last edited:

GW Nugget

Do the best you can with what you have...
GOLD Star
Joined
Jul 25, 2014
Messages
3,570
Location
Coalinga, CA
Website
forum.ih8mud.com
Sidebar question, as I dig deeper on these Timbren AOR & SES rubber springs, I'm learning there are a bunch of sizes they have with different load capacities.
My question is when hitting pot holes, going through very rough
terrain to absolute hitting a wash out to catching a few inches to feet of airtime... how many pounds of force do you think is pounding a bump stop. If an 80 series is 6000lbs then divide by 4 equals 1500lbs per corner just sitting under it own weight then hitting something at speed would be 6K-10K range.

So, @Shoredreamer @Box Rocket @woody & whoever has the 80/100 series Timbren bump/springs, have you ever hit anything hard enough & think that those bumps could be a bit firmer or do you think Timbren "Nailed it" with the correct bump/spring rate for the 80 series with the A515-55 2,400# AOR bump/spring?
I have 2 sets of 2,400# AOR on order... found them on the cheap before they went past the $300 per price point.
I asked this question earlier... maybe you all missed it. Calling on @Shoredreamer @woody @Box Rocket @Kabanstva or whoever.
 

Users who are viewing this thread

Top Bottom