Best 1.188 Cap Diameters: 10 U-Joints for Peak Strength

Looking for the best 1.188 cap diameters? We’ve gathered the top 10 U-joint options to help you get the perfect fit with strength and reliability.

Finding the right U-joint can be tricky. But with a 1.188 cap diameter, you’re in luck. This size fits many popular series, making it a go-to choice for smooth power transfer.

Whether you’re fixing a truck or upgrading a drivetrain, this guide has you covered. We’ve picked the best options for strength, fit, and reliability.

Ready to find the perfect match? Let’s dive in and make your ride run like new.

List of Top 10 1.188 Cap Diameters

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Spicer 5-1410-1X U-Joint Kit 1410/SPL36 Series (OSR) Spicer 5-1410-1X U-Joint Kit 1410/SPL36 Series (OSR)

This U-Joint Kit is perfect for truck owners, off-road drivers, and heavy-duty haulers who need strong, reliable parts. It’s built for anyone who wants durable performance and easy maintenance.

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Spicer 5-7166X U-Joint Kit 1350WJ Series (ISR) Spicer 5-7166X U-Joint Kit 1350WJ Series (ISR)

This U-Joint Kit is perfect for drivers who want strength and reliability in tough conditions. It’s made for those who need a durable fit that holds up under heavy use.

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Spicer 5-760X U-Joint Kit 1310WJ Series (ISR) Spicer 5-760X U-Joint Kit 1310WJ Series (ISR)

This Spicer 5-760X U-Joint Kit is perfect for drivers who want a strong, genuine OE replacement that fits right the first time. It’s made for anyone needing a durable axle shaft joint with precise inside snap ring style and exact fit dimensions.

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RABROPAR 5-1350X Universal Joint for 1350/SPL30 Series Non-Greaseable, U Joint Cap Diameter 1.188 RABROPAR 5-1350X Universal Joint for 1350/SPL30 Series Non-Greaseable, U Joint Cap Diameter 1.188″ x Length 3.625″, OSR Style with Snap Ring

This U-joint is perfect for truck owners, mechanics, and off-road drivers who need a tough, long-lasting part. It’s built for those who want maximum strength with zero hassle.

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Ovabeyna 5-160X U-Joint Kit 1410 Series Universal Joint (OSR) Ovabeyna 5-160X U-Joint Kit 1410 Series Universal Joint (OSR)

This Ovabeyna 5-160X U-Joint Kit is perfect for Ford F250 and F350 owners from 1999 to 2015. If your rear U-joint needs replacement, this 1410 Series kit is a great match.

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RABROPAR 1410 Series Weld Yoke 3-28-97 Tube Yoke RABROPAR 1410 Series Weld Yoke 3-28-97 Tube Yoke

This product is perfect for mechanics, fabricators, and DIY builders who need a strong, precise 1410 Series weld yoke. It’s ideal for anyone working on custom driveshafts or heavy-duty repairs where exact fit and durability matter.

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WQSING 331A Universal Joint U-Joint 5-3208X Compatible with Moog Precision Master Compatible with Spicer 1355 Series WQSING 331A Universal Joint U-Joint 5-3208X Compatible with Moog Precision Master Compatible with Spicer 1355 Series

This U-Joint is perfect for mechanics, truck owners, and DIY repair pros who need a strong, precise fit for Spicer 1355 series. It’s built for anyone who values durability and easy installation.

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Driveshaft Weld Yoke3-28-777 Tube Yoke 1350 Series Fits 2 Driveshaft Weld Yoke3-28-777 Tube Yoke 1350 Series Fits 2″ x 0.12″ Welded Tube Wall, Compatible with 5-1350X U-Joint

This driveshaft weld yoke is perfect for anyone needing a reliable replacement for their 1350 series driveshaft. It’s ideal for vehicles with a 2-inch tube diameter and 0.12-inch welded tube wall, ensuring a secure fit for heavy-duty use.

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New Universal Joint Kit Replacement for 1410 SPL36 Series with Bearing Cap Diameter 1.188 inch x 4.188 inch Outside Snap Ring Style U-Joint (Ref #: 5-160X, 5160X, HD5160X, 7525160X, OTR5160X, 330) New Universal Joint Kit Replacement for 1410 SPL36 Series with Bearing Cap Diameter 1.188 inch x 4.188 inch Outside Snap Ring Style U-Joint (Ref #: 5-160X, 5160X, HD5160X, 7525160X, OTR5160X, 330)

This U‑joint kit works for people who replace parts on Spicer 1410 engines.
It fits the exact bearing cap sizes so you can finish the job fast.

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World American 5-178XR 1350 Series Universal Joint Greasable OSR Style, 1.188 World American 5-178XR 1350 Series Universal Joint Greasable OSR Style, 1.188″ Bearing Caps, 3.625″ Snap Ring Span, Replaces for Spicer 5-178X 5-1350XP, Neapco 2-0053G, SKF UJ331

This universal joint is perfect for heavy-duty vehicles and equipment that need reliable driveline performance. It’s ideal for trucks, SUVs, and off-highway machines facing tough conditions.

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Detailed Reviews

Here are the Best 1.188 Cap Diameters you can trust. Each option is backed by expert analysis and real customer feedback. We highlight the top features and performance value in simple words. Read on to find the perfect fit for your needs.

1. Spicer 5-1410-1X U-Joint Kit 1410/SPL36 Series (OSR)

Spicer 5-1410-1X U-Joint Kit 1410/SPL36 Series (OSR)

The Spicer 5-1410-1X U-Joint Kit is built tough. It delivers smooth, reliable power every time.

It has a greaseable design for easy care. The snap rings hold strong. The OSR style keeps it secure.

The 1410/SPL36 Series fits right. The bearing cap diameter is 1.188 inches. The cap-to-cap length is 4.188 inches.

Pros Cons
  • Durable build for long-lasting performance
  • Greaseable design keeps maintenance simple
  • Precise fit with 1410/SPL36 Series
  • Strong grip with outside snap ring style
  • Reliable size for smooth operation
  • Heavy-duty size may not fit smaller vehicles
  • Grease maintenance needed for long-term performance

Perfect For:

This U-Joint Kit is perfect for truck owners, off-road drivers, and heavy-duty haulers who need strong, reliable parts. It’s built for anyone who wants durable performance and easy maintenance.

Ready to Purchase?

Related Articles

2. Spicer 5-7166X U-Joint Kit 1350WJ Series (ISR)

Spicer 5-7166X U-Joint Kit 1350WJ Series (ISR)

The Spicer 5-7166X U-Joint Kit is a reliable and durable solution for your vehicle’s drivetrain. It’s part of the 1350WJ Series, designed for heavy-duty performance. This kit ensures smooth and efficient power transfer.

It features a non-greaseable universal joint with snap rings for easy installation. The Inside Snap Ring Style (ISR) adds strength and stability. Its compact design fits perfectly in tight spaces.

With a bearing cap diameter of 1.188 inches and a length between snap rings of 2.406 inches, it’s precisely engineered. This Spicer kit is built to last and perform under tough conditions.

Pros Cons
  • Spicer Life ensures long-lasting performance without greasing.
  • Inside Snap Ring Style offers secure, reliable joint connection.
  • 1350WJ Series delivers heavy-duty strength for tough applications.
  • Precise dimensions guarantee perfect fit and easy installation.
  • Non-greaseable design means no easy maintenance
  • Limited fit—only works with 1350WJ series setups
  • Precise size may not suit all applications

Perfect For:

This U-Joint Kit is perfect for drivers who want strength and reliability in tough conditions. It’s made for those who need a durable fit that holds up under heavy use.

Ready to Purchase?

3. Spicer 5-760X U-Joint Kit 1310WJ Series (ISR)

Spicer 5-760X U-Joint Kit 1310WJ Series (ISR)

The Spicer 5-760X U-Joint Kit is a reliable replacement for your vehicle’s axle shaft. It features a non-greaseable design with snap rings for easy installation.

This 1310WJ Series kit includes inside snap rings and fits perfectly with a bearing cap diameter of 1.188 inches. It’s a genuine Spicer part, ensuring quality and durability.

Quick facts: Inside to inside dimension is 2.188 inches. Bearing cup size matches at 1.188 inches. Part numbers include CP297 1X, 371.

Pros Cons
  • Spicer Life ensures long-lasting performance without grease.
  • Genuine OE replacement for perfect fit and reliability.
  • Inside Snap Ring Style offers secure, hassle-free installation.
  • Precision dimensions guarantee smooth operation and durability.
  • No grease fitting limits maintenance options for long-term use.
  • Fixed dimensions may not fit all vehicle models or setups.
  • Non-greaseable design could lead to faster wear in harsh conditions.

Perfect For:

This Spicer 5-760X U-Joint Kit is perfect for drivers who want a strong, genuine OE replacement that fits right the first time. It’s made for anyone needing a durable axle shaft joint with precise inside snap ring style and exact fit dimensions.

Ready to Purchase?

4. RABROPAR 5-1350X Universal Joint for 1350/SPL30 Series Non-Greaseable, U Joint Cap Diameter 1.188″ x Length 3.625″, OSR Style with Snap Ring

RABROPAR 5-1350X Universal Joint for 1350/SPL30 Series Non-Greaseable, U Joint Cap Diameter 1.188

Built tough for 1350 Series and SPL30 Series, the RABROPAR 5-1350X delivers strength you can trust. It’s an OSR Style U-Joint Kit with an outside snap ring design. Simple, solid, and made to last.

This non-greaseable U-joint is pre-lubricated for life. That means less work and more reliable performance.

A synthetic thrust washer fights friction and heat. A multi-lip seal locks grease in and keeps dirt out. Compatible with Moog, Neapco, Duralast, and SKF equivalents, it’s the smart fit for serious durability.

Pros Cons
  • Fits 1350/SPL30 Series with perfect precision
  • Non-greaseable design for long-lasting, hassle-free use
  • Synthetic thrust washer reduces friction and heat damage
  • Multi-lip seal keeps grease in, dirt out
  • Wide compatibility with Moog, Neapco, Duralast, SKF
  • Non-greaseable design means no re-lubing option
  • Specialized fit may limit broad compatibility
  • Snap ring style can be tricky to install

Perfect For:

This U-joint is perfect for truck owners, mechanics, and off-road drivers who need a tough, long-lasting part. It’s built for those who want maximum strength with zero hassle.

Ready to Purchase?

5. Ovabeyna 5-160X U-Joint Kit 1410 Series Universal Joint (OSR)

Ovabeyna 5-160X U-Joint Kit 1410 Series Universal Joint (OSR)

Strong build. Exact fit. Easy install.

This Ovabeyna 5-160X U-Joint Kit replaces OEM number 5-160X. It fits Ford F250 and F350 (1999–2015, Rear). Always check your OEM model before buying.

The 1410 Series design ensures solid performance. Bearing cap diameter is 1.188, with 4.188 OSR spacing.

Pros Cons
  • Direct OEM replacement for easy fit and install
  • Built to 1410 Series specs for strong performance
  • Precise dimensions ensure reliable compatibility
  • Fits Ford F250/F350 1999–2015 rear applications
  • Clear OEM confirmation note avoids wrong purchase
  • Only fits Ford F250/F350 1999–2015 models
  • Must confirm OEM before buying
  • Limited use outside 1410 Series specs

Perfect For:

This Ovabeyna 5-160X U-Joint Kit is perfect for Ford F250 and F350 owners from 1999 to 2015. If your rear U-joint needs replacement, this 1410 Series kit is a great match.

Ready to Purchase?

6. RABROPAR 1410 Series Weld Yoke 3-28-97 Tube Yoke

RABROPAR 1410 Series Weld Yoke 3-28-97 Tube Yoke

The RABROPAR 1410 Series Weld Yoke is built tough with steel material and precise 1410 Series specs. It fits a 5-1410X U-Joint with a cap diameter of 1.188″ and width of 4.188″.

This yoke is made for 3″ tube diameter with a 0.083″ wall thickness. It has exact butt diameter of 2.845″ and a center line to weld of 2.125″ with a 30° joint angle.

It’s strong. It’s accurate. It’s ready to fit.

Pros Cons
  • Strong steel build for lasting strength
  • Exact fit with 1410 Series specs
  • Wide compatibility with multiple part numbers
  • Precise measurements for smooth installation
  • Trusted performance with professional setup
  • No installation guide included, making setup tricky for beginners.
  • Professional installation required, adding extra cost and effort.
  • Part number check needed before buying, risking wrong purchase.

Perfect For:

This product is perfect for mechanics, fabricators, and DIY builders who need a strong, precise 1410 Series weld yoke. It’s ideal for anyone working on custom driveshafts or heavy-duty repairs where exact fit and durability matter.

Ready to Purchase?

7. WQSING 331A Universal Joint U-Joint 5-3208X Compatible with Moog Precision Master Compatible with Spicer 1355 Series

WQSING 331A Universal Joint U-Joint 5-3208X Compatible with Moog Precision Master Compatible with Spicer 1355 Series

The WQSING 331A Universal Joint is built for strength. It matches Moog Precision Master. It also fits the Spicer 1355 Series.

It comes with Part Number: 5-3208X. The style is OSR snap ring. The distance between rings is 3.612.

The cap diameter is 1.188. It’s made for a secure fit. Reliable and ready to perform.

Pros Cons
  • Strong build for lasting performance
  • Exact fit with 3.612 ring spacing
  • Reliable design with OSR snap ring style
  • Smooth motion from 1.188 cap diameter
  • Limited compatibility with other series
  • Duplicate specs may confuse buyers
  • No extra features beyond basics

Perfect For:

This U-Joint is perfect for mechanics, truck owners, and DIY repair pros who need a strong, precise fit for Spicer 1355 series. It’s built for anyone who values durability and easy installation.

Ready to Purchase?

8. Driveshaft Weld Yoke3-28-777 Tube Yoke 1350 Series Fits 2″ x 0.12″ Welded Tube Wall, Compatible with 5-1350X U-Joint

Driveshaft Weld Yoke3-28-777 Tube Yoke 1350 Series Fits 2

This driveshaft weld yoke is compatible with 1350 series and 5-1350X U-joint. It fits a 2-inch tube diameter with a 0.12-inch welded tube wall.

Made of steel, it has a 30-degree joint angle and an outside snap ring design. Professional installation is recommended, and part number verification is essential before purchase.

Pros Cons
  • Fits 2″ tubes with 0.12″ walls for strong, secure welds.
  • Compatible with 5-1350X U-Joint, ensuring perfect fit.
  • Steel material offers durability and long-lasting performance.
  • Outside snap ring design for easy installation and reliability.
  • No installation guide included.
  • Check part number before buying.
  • Steel may rust over time.

Perfect For:

This driveshaft weld yoke is perfect for anyone needing a reliable replacement for their 1350 series driveshaft. It’s ideal for vehicles with a 2-inch tube diameter and 0.12-inch welded tube wall, ensuring a secure fit for heavy-duty use.

Ready to Purchase?

9. New Universal Joint Kit Replacement for 1410 SPL36 Series with Bearing Cap Diameter 1.188 inch x 4.188 inch Outside Snap Ring Style U-Joint (Ref #: 5-160X, 5160X, HD5160X, 7525160X, OTR5160X, 330)

New Universal Joint Kit Replacement for 1410 SPL36 Series with Bearing Cap Diameter 1.188 inch x 4.188 inch Outside Snap Ring Style U-Joint (Ref #: 5-160X, 5160X, HD5160X, 7525160X, OTR5160X, 330)

This Universal Joint Kit is built tough for the Spicer 1410 SPL36 Series. It’s greasable, durable, and designed with an outside snap ring style for secure fit.

Easy to install. Strong performance. Reliable replacement. This kit matches OEM parts like 5-160X, 5160X, HD5160X, 7525160X, OTR5160X, 330.

Pros Cons
  • Fits perfectly with Spicer 1410 SPL36 series
  • Strong build for heavy-duty performance
  • Greasable design for longer life and easy care
  • Direct replacement for multiple OEM part numbers
  • Reliable snap ring style for secure fit
  • No installation tools included, so you’ll need to buy them separately.
  • Not compatible with all vehicle models—check before buying.
  • Requires regular greasing to ensure long-lasting performance.

Perfect For:

This U‑joint kit works for people who replace parts on Spicer 1410 engines.
It fits the exact bearing cap sizes so you can finish the job fast.

Ready to Purchase?

10. World American 5-178XR 1350 Series Universal Joint Greasable OSR Style, 1.188″ Bearing Caps, 3.625″ Snap Ring Span, Replaces for Spicer 5-178X 5-1350XP, Neapco 2-0053G, SKF UJ331

World American 5-178XR 1350 Series Universal Joint Greasable OSR Style, 1.188

The World American 5-178XR is a tough 1350 Series greasable universal joint built for heavy-duty steel driveshafts. It uses an OSR style yoke design, making it perfect for high torque setups.

It comes with 1.188″ bearing caps and a 3.625″ snap ring span for a precise fit. The rubber seals and straight grease fitting keep it running smooth and lasting longer.

Strong fit. Easy service. Wide replacement range.

Pros Cons
  • Heavy-duty design for high torque and steel driveshafts.
  • Smooth rotation with precision ground bearing caps.
  • Easy lubrication for longer service life.
  • Replaces multiple brands, saving time and money.
  • Not sealed against extreme dirt or water exposure
  • Requires regular greasing to avoid wear and failure

Perfect For:

This universal joint is perfect for heavy-duty vehicles and equipment that need reliable driveline performance. It’s ideal for trucks, SUVs, and off-highway machines facing tough conditions.

Ready to Purchase?

Buying Guide

Finding the right U-joint feels good. The fit is exact. The ride stays smooth.

  • Fit and Size: Always check the bearing cap diameter. For these kits, the standard is 1.188 inches. A wrong size means poor fit and fast wear.

  • Snap Ring Style: Choose between OSR (Outside Snap Ring) and ISR (Inside Snap Ring). OSR is common for driveshafts. ISR works well in tighter spaces.

  • Greaseable vs Non-Greaseable: Greaseable joints let you maintain them. Non-greaseable joints are sealed for life. Pick based on how much care you want to give.

  • Series Compatibility: Match the series number (like 1310, 1350, 1410). Each series has its own cap-to-cap length. Wrong series means no fit.

  • Strength and Durability: Look for heat-treated steel and multi-lip seals. These resist wear, keep dirt out, and hold grease in.

  • OEM Match: Always check the OEM part number. This ensures the joint fits your exact vehicle model.

  • Application Use: Some joints are made for axle shafts, others for driveshafts. Pick the right one for your repair or upgrade.

  • Ease of Install: Kits with snap rings and precise machining make installation simple. Less hassle means faster work.