SKU: 12381926624

88-98 SILVERADO OBS TBM Modular Bore Billet Master Cylinder Conversion Kit (Choose Bore Size)

Sale price$214.65 Regular price$238.50
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Description

88-98 SILVERADO OBS TBM Modular Bore Billet Master Cylinder Conversion Kit (Choose Bore Size)88 98 SILVERADO OBS TBM Modular Bore Billet Master Cylinder Conversion Kit (Choose Bore Size) Our Manual Brake Master cylinder kit utilizes a billet firewall mounting plate CNC'd from 6061 Aluminum. This plate is designed to utilize our TBM Modular Billet Tandem Master Cylinder. This requires you to drill your brake pedal for the master cylinder pushrod Kit includes all hardware necessary. Years of development went into this all new TBM Billet Modular

88-98 SILVERADO OBS TBM Modular Bore Billet Master Cylinder Conversion Kit (Choose Bore Size)

Our Manual Brake Master cylinder kit utilizes a billet firewall mounting plate CNC'd from 6061 Aluminum. This plate is designed to utilize our TBM Modular Billet Tandem Master Cylinder. This requires you to drill your brake pedal for the master cylinder pushrod Kit includes all hardware necessary.

Years of development went into this all new TBM Billet Modular Master Cylinder which answers the needs of racers and hot rodders alike. For years our brakes have rapidly developed to create world class braking systems. However, the control system of a car's braking system is the master cylinder. While most brake master cylinders are cast spinoffs of old technology that lack options in internal and physical outside sizing, have leaking issues, and reliability issues. The TBM brake master is a ground up engineered design to remedy those questions and offer new solutions for builders.

Sizing Guideline

15/16" Bore Size: Our TBM Billet 15/16" Master cylinder is only recommended for vehicles running 2 piston front brakes and 4 piston rear brakes at 6:1 Pedal Ratio.

1.032" Bore Size: Our TBM Billet 1.032" Master cylinder is recommended for vehicles running 4 piston front brakes and 4 piston rear brakes at 6:1 Pedal Ratio.

Instructions: Click Here

Features:

  • Master Cylinders held to exact tolerance and precision for out of the box performance
  • Compact Design fits where others don't (an inch or more shorter than standard masters)
  • Modular design allows for adaptability on the top (reservoir) and bottom (outlet plate)
  • Symmetrical Outlet plate gives you the ability to run the outlet fittings on either side of the master cylinder
  • Standard outlet plate offers better line routing than traditional master cylinders with down facing or side facing outlet fittings
  • 3an Female & 1/8" NPT outlet fittings
  • Fully captured pushrod (Zero risk of pulling out)
  • Hard Coated pistons avoid internal wear and debris with extended use that can clog and degrade brake caliper and system performance
  • Front threaded mounting holes offer ability to rigid mount the front of the master cylinder in chassis cars with add on steel plate
  • Oring construction for zero leaks
  • Easily swap from reservoir to remote mount with P/N 41-0004
  • 1lb. lighter than most aftermarket tandem master cylinders
  • Bright Black Anodize finish for ultimate durability
  • EPDM Seals
  • Stainless Hardware
  • Made completely in the USA in Bradenton, FL

Included: 

  • 6:1 Pedal Ratio optimized for manual brakes
  • Billet Manual Master Cylinder Firewall Plate
  • TBM Modular Billet Aluminum Tandem bore Master Cylinder
  • Hardware for Installation
  • Brake Push Rod w/ Heim Joint for attaching to pedal
  • Fittings for Master Cylinder

*Note: Slight modification to existing bolt holes on firewall needed to accommodate brake plate. Additionally, factory pedal assembly needs to be removed and studs going through firewall to hold factory master cylinder need to be removed from pedal assembly by cutting as bolts will be put in place*

This kit improves the brake pedal ratio for use with manual brakes vs. power brakes.  While sharing the original bolt pattern, this requires you to modify the existing hole where the master cylinder goes through the firewall to accommodate the stronger ratio. 

Note: Due to the difference in pedal travel based off of the required manual master cylinder ratio, brake light switch may require modification to work properly based off of pedal position.

Do's and Don'ts for proper master cylinder setup: Must Watch!

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 12381926624

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Sheila Cash
San Leandro, US
★★★★★ 1
Wobbly and Poor Design
Size: 1-Panel
Update: nope! Not worth the money. My cat simply brushed against the divider, and it fell, knocking breakable things over. Not safe! It serves it's purpose, but...the screws were basically glued to the packaging. It took me longer to get the screws out of the packaging than it did to put it together. The assembly was easy. I am not mechanically inclined by any means, but the instructions, despite being very hard to read (I have over 40 eyes), were pretty simple. Structurally, it is very wobbly. I think they should have designed it with a middle rod to keep it more stable. I find that the attachments to the rods are wobbly and should have been screwed rather than popped into an attachment hole without reinforcement. That would have also made the room divider more stable. I have cats, but the material is easy to clean. I took a damp cloth to it, and it came right off. As far as see-through...I think it does a great job of masking theO other side of the room.. I just wish it was a little longer and closer to the floor stand. I like that it came with extra parts. It's just a very cheaply made item, and I don't think the price for the item reflects how cheaply it is made, how wobbly and unstable it is, or the poor design.
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Reviewed in the United States on March 15, 2025
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David T Stark
Dallas, US
★★★★★ 5
Very good room divider
Size: 6-Panel
I ised this to isolate a storage area in my apartment. Looks better than boxes.
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Reviewed in the United States on January 22, 2026
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Jodie
Los Angeles, US
★★★★★ 3
Taking forever but worth it
Size: 1-Panel, Size: 1-Panel
Love the product. However, trying to take the screws etc out of its box, it’s almost impossible due to the adhesive inside it. I have neck and arm issues so for me it was even more difficult. Adhesive stuck to each washer and screw so I had adhesive all over my hands then I had to get it off of the items.
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Reviewed in the United States on April 21, 2025
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Lyssetic
Port Orchard, US
★★★★★ 5
Favorite Socks Ever
Size: Medium, Color: Black/Assorted, Size: Medium, Color: Black/Assorted
I absolutely love these socks, they compress in the middle which is my favorite thing about them! Keeps them from slipping off my feet and also adds support, love love love how they feel and how long they last! This is my second pack that I’ve purchased, I had the multi colored ones before and they’ve lasted me two years before finally starting to wear out and fade and get holes. Definitely going to be routinely buying these every year. Good to wear with my work out shoes...winter boots, Nike sandals, and my everyday adidas sneakers. These are so worth it!
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Reviewed in the United States on May 28, 2019
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Carol
Birmingham, US
★★★★★ 5
Great ankle socks that stay put at a great price!!
Size: 6-9, Color: Assorted
These are great! I have been looking for a low profile ankle sock that is thinner but doesn’t ride down. (Picky, right?) I try to walk 5-7 miles on my days off. So it’s very important for me to not have to stop every couple of hundred yards, bend down, fix socks, then continue on my way while grumbling about NOT GREAT socks. These are not those socks. They really do stay put!!! And enough cushion to be comfortable also. So definitely a repeat!!
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