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Timbren 1" Spacer For Raised Frame Vehicles - 3/8" Bushing

Timbren 1" Spacer For Raised Frame Vehicles - 3/8" Bushing

Item # A25723-90AH00
Our Price: $16.26
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Shipping Weight: 0.63 lbs
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1" Spacer fits vehicles with raised frames. Center bushing fits a 3/8" bolt. 1-800-940-8924 to order Timbren accessories and parts part number A25723-90AH00 or order online at Free expert support on all Timbren products. Great prices and Fastest Shipping for Timbren 1" Spacer For Raised Frame Vehicles - 3/8" Bushing. Accessories and Parts reviews from real customers.
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  • Reviews (119)
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Timbren Accessories and Parts - A25723-90AH00

  • Vehicle Suspension
  • Spacers
  • Timbren

1" Spacer fits vehicles with raised frames. Center bushing fits a 3/8" bolt.


  • Spacer fits vehicles with raised frames
  • Quantity: 1 spacer


  • Thickness: 1"
  • Overall diameter: 4"
  • Bushing diameter: 3/8"


A25723-90AH00 Timbren 1" Spacer with 3/8" Bushing for Raised Frame Vehicles

Video of Timbren 1" Spacer For Raised Frame Vehicles - 3/8" Bushing

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Review of Timbren Vehicle Suspension Spacer - A25723-90AH00

Michael: Hi there. I'm Michael with Today, we're going to take a quick look at the Timbren one-inch spacer for raised frame vehicles. Now Timbren does recommend that you have a half to one and a half inches of clearance between your Timbren and the contact point when the truck isn't under a load. If the clearance is more than what's recommended, then a spacer is going to be the ideal solution for you.Now, this spacer measures one inch thick; has an overall diameter of four inches. And the hole here in the center will accept a three-eighths inch diameter hardware.

Remember that the hardware is going to need to be longer since you're adding a spacer. You can go to your local hardware shop and pick something up, that's exactly what we do here when we install these on customer vehicles here in our shop, so you should be able to find that pretty easily.Now, this is the one inch spacer. There's also a half inch spacer. So if you need just a little bit more than the one inch here, or maybe just a little bit less, you have that option as well. You can find that here at using the part number that you see on the screen there.So if you're needing a little bit more space for your Timbren Springs, this is going to be the piece that you need.That's going to complete our look for today.

Again, I'm Michael with Thanks for watching.

Customer Satisfaction Score:

Customer Reviews

Timbren 1" Spacer For Raised Frame Vehicles - 3/8" Bushing - A25723-90AH00

Average Customer Rating:  4.8 out of 5 stars   (119 Customer Reviews)

1" Spacer fits vehicles with raised frames. Center bushing fits a 3/8" bolt.


So far so good, I added Sumo Springs to my 4runner, but I have a 2" lift, and needed 2 of these spacers on each side to keep the Sumo Springs at the proper distance from the axle,seem to be good quality.


This is an excellent product that helped level my 4runner while pulling my travel trailer. By preventing the back end from sagging, the front wheels stay fixed to the road for proper steering. I believe the 3/8 bushing was too small and I required 1/2 inch instead. Kaylyn at went above and beyond their normal customer service and got me in touch with the sales rep for Timbren, who promptly sent me the right size in time to make my big trip. He worked with me to find the right size for my after-market lift kit. In a time that companies are indifferent at best, makes the customer feel important in a sincere way. I also love e.trailer's selection and fast shipping.


With our 2007 Tundra we pull a 2016 Lance twin axle travel trailer. Lance advises a towing height of 20.5" from the road to the top of the ball hitch. To bring my Tundra up to the right height, I originally purchased etrailer Timbrens. However, after installing the Timbrens the Tundra was still too low. By adding this 1" spacer the height is now about 20.25". The pictures show the Tundra with just the Timbrens and then after adding the spacer. If you buy this product, you'll need to purchase longer Timbren bolts; etrailer mentions that on their video. I want to thank etrailer for providing great information and excellent products.


I have a 5.7 V8 Toyota Tundra. I run a dumpster rental and hauling company. I have Hellwig 2,500 pound helper springs and 6,000 pound Timbren shocks with the 1 inch Timbren spacer on the rear of my truck. Below is a picture of a 11,000 pound load hooked up to my tundra with 1,000 pounds in the truck bed as well. Zero squat. I love Timbrens products. Heavy duty. Perfect for my needs. They have a load on them 24/7/365 between the 1,000 pounds of tools and equipment in my truck bed and the very very heavy trailers I pull on a daily basis. Thank you Timbren! Have a trailer behind my Tundra daily. Power is NEVER an issue. It pulls like a diesel. Just needed to beef up the rear suspension a tad and this did just that. I'm all set now! Looking to get the front Timbrens sometime soon to. Not that I need them, more just a want. I do have a 400 pound HD winch bumper on the front of my truck but it's not causing any nose diving or anything. Just like the extra support provided by the Timbrens. Never hurts.


This is my 3rd order over the last several years I've made with etrailer. They are always friendly and happy to help you with your order. If you have any questions about one of their products be sure to contact them before moving on to another source. They fill orders quickly and accurately.


Thank you Carol C for all of your support and rapid response and explaining everything. I wish I found etrailer a long time ago for my Tacoma mods. Will be looking for a roof rack soon so will come here first! Your site is probably the most helpful and informative that I have been to in a long time. New customer that will always check your site before going anywhere else. Thank you!


I have Timbrens and needed a spacer to improve the squat of my 2017 F150 after I bought a 2018 Lance 650 truck camper. Works perfectly. Rides great.


These worked great. I needed at least 3/4 of an inch more Because my truck is lifted. Just needed to get longer bolts.


Put these on my F350 towing a 15K pound 5th wheel to minimize squat, and after about 15K miles, I have been very happy with how they work. Super easy to install.


These “overloads” are such a great answer to suspension needs! They are made with high grade materials and the installation was a snap! I would buy them again many times over! Don’t mess with air bags, compressors, air lines and all that “stuff.” These are the deal!! Pictures of before and after. Simple way to add significant suspension payload quickly with little fuss.


Looks great have not put a heavy load on it yet. Had to use three 1in spacers I have a 4.5in suspension lift on my 2011 F250 4wd.


Another of many orders from trailer. Easy to follow website and fast shipping


Just rec,d my kit today. Very impressed with the quick delivery time and customer service to this point. With send another review after installation. As of now I am very,very happy with the service and the product. Exactly what I was expecting. Looking forward ti installation. John L. Horne


These spacers are just what you need if your truck has been lifted. The product is well built and allowed me to get the correct spacing. They also coming in different diameters. The order was quickly shipped and worked as advertised.



After a year, I am still very happy with the product. Really good value for the price. Especially compared to more expenseive options.


I use this with the timbren SES for my 2016 Tacoma. I tow a 5500 pound trailer with 900 pound tongue weight. Truck squats maybe 1 inch and that's it...incredible. Ride quality while not towing is indistinguishable from stock other than there is a very noticeable reduction in body lean while cornering. I liken this to the same feeling as installing larger sway bars on a sports car. This is just st an added benifit if the timbren system. Highly recommend anything timbren puts out. Etrailer also has outstanding customer service.


You don’t need these if you have a front end leveling kit on a Silverado 1500. It is too much. The Timbrens are installed at the frame and the extra half inch that far back on the a-arm makes the suspension way too stiff. On a fun note, going to take these out, I tripped backwards over the tire I had off my truck and ruptured my quadriceps tendon. Still recovering almost a year later.


Purchased item TGMRYS4 for my 2008 Tahoe 4x4, once installed I had a 3" gap between bellows and contact pad. Pulling my trailer made no difference with Timbren Bellows so I had to install the 1" spacers to come close to the recommended spacing from the instructions. After research I found out that Timbren TGMRYS4 fits multiple vehicles with different ride heights. I may still need the 1/2" spacer to comply with Timbrens recommendations of 1 1/2" clearance. GREAT product to fix issues like mine.


Excellent spacers to use on lifted trucks. 2" lift used two 1" spacers.


Very easy to install with my Timbren sp ring.


Got them for my 2021 2500hd Silverado I have a service body on this truck with all my tools, 100 gallon transfer tank and air compressor, I originally just had the timbrens on but I didn’t like how it had a little bit of squat, adding the inch it spacer was the ticket the truck has 2400lbs of payload on it all the time and it looks like it has no weight at all.


Does what it is advertised to do.

Monty S.


Product is wonderful, I installed them on the front of my truck to keep the snow plow from bottoming out while driving and guess what it worked.


Etrailer is very easy to work with and their customer service is excellent. The Timbren SES is easy to install and seem to be a significant upgrade from the OEM parts!


I will review the product after I give them a whirl. However, until I get the right bolts, it'll be a while.

If there are different bolts required for the spacers, there should be a message before check out advising of that. I have 3300lbs to pick up and now I have to go to Tractor Supply after work tomorrow to get bolts. Wasted my time today taking the leaf springs off and getting partially thru install only to realize the bolts were to be locally procured. That's honestly ridiculous. Not happy!!

Maybe after I get the bolts and install, I may revise my review. But for now, you guys should be ashamed to offer these parts with out the right bolts or atleast an advisory that the hardware will be required prior to install. Which is actually still ridiculous because you can't get the right bolts without knowing the size and thread per inch. So all in all, this is shotty business and I would be embarrassed about it.


Product is of solid rubber construction ...and if you actually needed the would work fine.
I have a 2015 F150 4x4 with a 1" lift in the rear of the truck & a 2 1/2" lift in the front of the truck. I asked etrailer "experts" what recommendations they had when I ordered the Timbren Rear Suspension Enhancement System.
Due to my 1" lift, the "etrailer experts", recommended I also purchase and add these 1" spacers to the Suspension System Enhancement.
I watched their installation video where the experts suggested to leave a 1" space between the bumpstop system and the axle.
What I discovered is ...if I installed these spacers, the bumpstop was actually resting on the axle me a very stiff uncomfortable ride without any load in the truck.
Bottom line...for installs on a 2015 F150 4x4 with a 1" lift...NO SPACERS ARE REQUIRED....SAVE YOUR MONEY.
Without the 1" spacers, (with no load in the truck), I found the Rear Suspension Enhancement System rested 1" above the axle. I found the ride was better and the system will activate & perform once under a load. If you do decide to use the spacers make sure you order quantity "2". Don't assume they come in sets or you will be paying for another shipping charge when you order the second spacer. I hope this helps someone.


Great product!! I was blowing out airbags left and right when I learned about the Timbren system. I added the new kit, preloaded it, and what a great ride! I bought these spacers to add a bit of lift to the rear end of my truck. The guys sent my order out fast and it isn't some knock off, junk either. It's the real deal. Thanks!!

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Info for this part was:

Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video Edited:
Joshua S
Employee Cole B
Installed by:
Cole B
Employee Michael B
Installed by:
Michael B
Employee Wilson B
Updated by:
Wilson B
Employee Noah M
Updated by:
Noah M

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