SKU: 21092199260

Ultima | Rear Brake Wheel Cylinder LHS/RHS | Holden Gemini RB 1985–1987 | JB2958

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Description

Ultima | Rear Brake Wheel Cylinder LHS/RHS | Holden Gemini RB 1985–1987 | JB2958Ultima Rear Brake Wheel Cylinder LHS RHS (JB2958) for Holden Gemini RB 19851987 This Ultima Rear Brake Wheel Cylinder (JB2958) is designed as a high quality, direct OE replacement for the Rear Axle of the Holden Gemini RB series, fitting models between May 1985 and June 1987. This cylinder is suitable for both the Left Hand Side (LHS) and Right Hand Side (RHS) of the vehicle. It is a vital component in the rear drum brake system, converting hydraulic

Ultima Rear Brake Wheel Cylinder LHS/RHS (JB2958) for Holden Gemini RB 1985–1987

This Ultima Rear Brake Wheel Cylinder (JB2958) is designed as a high-quality, direct OE replacement for the Rear Axle of the Holden Gemini RB series, fitting models between May 1985 and June 1987. This cylinder is suitable for both the Left-Hand Side (LHS) and Right-Hand Side (RHS) of the vehicle. It is a vital component in the rear drum brake system, converting hydraulic pressure into the necessary stopping force required by the brake shoes.

Features & Benefits:

  • Direct Fit OE Replacement: Designed to match the fit, form, and function of the original equipment wheel cylinder.
  • Reliable Braking: Ensures accurate hydraulic pressure transfer for consistent and responsive drum braking performance.
  • Corrosion Resistance: Manufactured from durable materials for protection against corrosion and wear.
  • Universal Fitment: This single part number fits both the Rear Left-Hand Side (LHS) and Rear Right-Hand Side (RHS).
  • Complete Unit: Supplied ready to install with pistons, seals, and boots.

Technical Specifications

  • Brand: Ultima
  • Part Number (SKU): JB2958
  • Type: Brake Wheel Cylinder
  • Position: Rear Axle (LHS or RHS)
  • Vehicle Model: Holden Gemini
  • Series: RB
  • Years: 1985–1987 (05/1985 to 06/1987)
  • Use: Passenger Sedan / Hatchback

Vehicle Fitment Information

Make Model Series Years Position
Holden Gemini RB 1985–1987 Rear (LHS/RHS)

Important Information

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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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]
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SKU: 21092199260

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4.5 ★★★★★
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Mike Shipman
Los Angeles, US
★★★★★ 4
Sturdy and well made
I have yet to use this jig, but on initial inspection it is well made and no doubt will withstand a lot of use. The machining of the threads was rough on the one I received, but after screwing in the guides a couple times the operation became smoother. Probably lack of cleanup after anodizing left in the threads. Other than that it looks like it will be useful and longer lasting than many of the plastic jigs out there.
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Reviewed in the United States on July 26, 2023
D
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Don
Birmingham, US
★★★★★ 5
Easy to use
I built a bookshelf for my grandson and wanted adjustable shelves. This jig did the trick. Very easy to use, and a lot of adjustability. I have other tools by goingmake and they all are well made and affordable.
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Reviewed in the United States on August 30, 2025
R
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Riley
Dallas, US
★★★★★ 5
Works very well and holds up over time!
This works really well for drilling out shelf pins! The drill bit that comes with it is a good quality bit, and the holes in the metal block are very strong, The drill bit doesn't even come close to cutting into them. I have drilled about 1000 holes with it so far, and it still works as good as it did when it was brand new! I would definitely recommend this over the plastic ones. It's very easy to use, as well.
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Reviewed in the United States on June 27, 2025
S
Verified Purchase
Steven K
Natrona Heights, US
★★★★★ 5
Great item
Size: 9 Holes
Works great Would be nice to have another peg to make sure it stays in line. Just used a drill bit of the same size. Worth the investment
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Reviewed in the United States on March 4, 2026
K
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Kindle Customer
Omaha, US
★★★★★ 5
Game-Changer for Clean, Accurate Shelf Pin Holes!
This shelf pin jig absolutely delivered on everything I needed — the ease of use was fantastic right out of the box. Once I got the layout aligned, drilling was quick and precise. The accuracy is impressive, with clean, straight holes every time, and the included bits worked like a charm. The design is clever, compact, and durable — the aluminum plate feels premium and makes it easy to keep things straight. I love the versatility too; switching between 5mm and 1/4" bits was fast, and the guide holes are clearly labeled. The size is ideal for cabinets, bookcases, and even tighter spaces where a bulky jig wouldn’t fit. For anyone needing quick, repeatable shelf pin drilling, this jig speeds up the use and keeps your project moving fast without compromising quality. If you're doing any custom shelving or cabinet work, this is a must-have tool that saves time and eliminates guesswork.
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Reviewed in the United States on May 13, 2025

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