How to overhaul front Universal Joint on Mercury Bobcat?

Clean away all traces of dirt and grease from the snap-rings located on the ends of the bearing cups. Remove the snap-rings by pressing their open ends together with a pair of pliers, and lever them out with a screwdriver, If they are difficult to remove, tap the bearing cup face resting on the top of the spider with a soft-faced hammer which will ease the pressure on the snap-ring. Take off the bearing cups on the driveshaft yoke. To do this select two sockets from a socket spanner set, one large enough to fit completely over the bearing cup and the other smaller than the bearing cup. Open the jaws of the vise and with the sockets opposite each other and the universal joint in between, tighten the vise and so force the narrower socket to move the opposite cup partially out of the yoke into the larger socket. Remove the cup with a pair of pliers. Remove the opposite cup.and then free the yoke from the driveshaft. To remove the remaining two cups now repeat the instructions, or use a socket and hammer. Recover the thrust bearing from inside each cup and remove the seal from the base of each spider journal. Before reassembling, using new parts as necessary, thoroughly clean out the yokes and journals. Fit new oil seals to the spider journals and then assemble the needle rollers in the bearing cups with the assistance of some thin grease. Fill each bearing cup about one third full with a universal grease.not forgetting to refit the thrust bearings first. Refit the bearing cups on the spider and tap the bearings home so that they lie squarely in position. Replace the snap-rings and settle the cups by tapping the whole assembly with a soft faced hammer. Check that angular movement of the universal joint is free throughout its full range without signs of stiffness.

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Mercury U-Joint Repair Kit
Part Number: 6L2Z-4635-A
$62.20 MSRP: $90.93
You Save: $28.73 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Kit - Universal Joint Repair; U-Joint Kit, Universal Joints
- Manufacturer Note: Size 1330
- Replaces: 4L5Z-4635-BA
Fits the following Mercury Models:
- Mariner | 2008-2011 | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric, 6 Cyl 3.0L DOHC EFI Modular, 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
- Mountaineer | 2002-2010 | 6 Cyl 4.0L SOHC EFI, 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI | 5-Speed Automatic Transmission 5R55S, 5-Speed Automatic Transmission 5R55W, 5-Speed Manual Transmission (M5R4), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Right Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Mercury U-Joint
Part Number: C3AZ-4635-J
$13.73 MSRP: $18.75
You Save: $5.02 (27%)
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Product Specifications
- Other Name: Kit - Universal Joint Repair; Universal Joints
- Position: Front And Rear
Fits the following Mercury Models:
- Bobcat | 1980 | 4 Cyl 2.3L | 3AT C3, 3AT C4, 4MT
- Capri | 1980-1986 | 4 Cyl 2.3L, 6 Cyl 3.3L, 6 Cyl 3.8L, 8 Cyl 4.2L, 8 Cyl 5.0L | 3AT C3, 3AT C4, 3AT C5, 4AT AOD, 4MT, 5MT
- Cougar | 1980-1988 | 4 Cyl 2.3L, 6 Cyl 3.3L, 6 Cyl 3.8L, 8 Cyl 4.2L, 8 Cyl 5.0L | 3AT C3, 3AT C4, 3AT C5, 4AT AOD, 4MT, 5MT
- Grand Marquis | 1980-1988 | 8 Cyl 4.2L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT, 3AT C4, 3AT C6, 4AT AOD
- Marquis | 1983-1986 | 4 Cyl 2.3L, 6 Cyl 3.3L, 6 Cyl 3.8L | 3AT C3, 3AT C5, 4MT
- Zephyr | 1980-1983 | 4 Cyl 2.3L, 6 Cyl 3.3L, 8 Cyl 4.2L | 3AT C3, 3AT C4, 3AT C5, 4MT
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Mercury U-Joint Repair Kit
Part Number: F1TZ-4635-C
$42.13 MSRP: $61.60
You Save: $19.47 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Kit - Universal Joint Repair; U-Joint, Universal Joints
- Replaces: F1TZ-4635-A, F2AZ-4635-A
Fits the following Mercury Models:
- Cougar | 1990-1993 | 6 Cyl 3.8L | 4AT AOD, 5MT
- Grand Marquis | 1982-1994 | 8 Cyl 4.2L, 8 Cyl 4.6L, 8 Cyl 5.0L, 8 Cyl 5.8L | 4AT, 4AT AOD, 4AT AODE
- Mariner | 2005-2006 | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
- Marquis | 1983-1986 | 4 Cyl 2.3L, 6 Cyl 3.3L, 6 Cyl 3.8L | 3AT C3, 3AT C5, 4MT
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Mercury U-Joint Kit
Part Number: F5TZ-4635-A
$42.22 MSRP: $60.67
You Save: $18.45 (31%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Joint Assembly - Universal
- Position: Front
- Replaced by: 7L1Z-4635-B
Fits the following Mercury Models:
- Grand Marquis | 2007-2011 | 8 Cyl 4.6L Romeo SOHC EFI | 4-Speed Automatic Transmission 4R75E Livonia, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
- Mountaineer | 2006-2010 | 6 Cyl 4.0L SOHC EFI, 8 Cyl 4.6L | 5-Speed Automatic Transmission 5R55S, 5-Speed Automatic Transmission 5R55W, 5-Speed Manual Transmission (M5R4), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive
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Mercury U-Joint Repair Kit
Part Number: 3W1Z-4635-AA
$74.30 MSRP: $103.22
You Save: $28.92 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Kit - Universal Joint Repair; Universal Joints
Fits the following Mercury Models:
- Grand Marquis | 2006 | 8 Cyl 4.6L | 4AT 4R70W
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Mercury U-Joint Repair Kit
Part Number: F2AZ-4635-C
$32.49 MSRP: $47.50
You Save: $15.01 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Kit - Universal Joint Repair
- Position: Front And Rear
- Replaced by: 4L3Z-4635-C
Fits the following Mercury Models:
- Cougar | 1989-1997 | 6 Cyl 3.8L, 8 Cyl 4.6L, 8 Cyl 5.0L | 4AT, 4AT 4R70W, 4AT AOD, 4AT AODE, 5MT
- Grand Marquis | 1997-2005, 1989 | 8 Cyl 4.6L, 8 Cyl 5.0L, 8 Cyl 5.8L | 4AT 4R70W, 4AT AOD
- Mountaineer | 2002-2005 | 6 Cyl 4.0L SOHC EFI, 8 Cyl 4.6L Romeo SOHC EFI | 5-Speed Automatic Transmission 5R55S, 5-Speed Automatic Transmission 5R55W, 5-Speed Manual Transmission (M5R4), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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View related parts
Mercury U-Joint Repair Kit
Part Number: 4L3Z-4635-A
$32.49 MSRP: $47.50
You Save: $15.01 (32%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Kit - Universal Joint Repair
- Replaced by: 4L3Z-4635-C
Fits the following Mercury Models:
- Mountaineer | 2002-2010 | 6 Cyl 4.0L SOHC EFI, 8 Cyl 4.6L Romeo SOHC EFI | 5-Speed Automatic Transmission 5R55S, 5-Speed Automatic Transmission 5R55W, 5-Speed Manual Transmission (M5R4), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Mercury U-Joint Repair Kit
Part Number: 4L5Z-4635-AA
$73.36 MSRP: $107.25
You Save: $33.89 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Kit - Universal Joint Repair
- Replaced by: 4L5Z-4635-B
Fits the following Mercury Models:
- Mountaineer | 2006-2010 | 8 Cyl 4.6L | 5-Speed Automatic Transmission 5R55S, 5-Speed Automatic Transmission 5R55W, 5-Speed Manual Transmission (M5R4), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Mercury U-Joint Repair Kit
Part Number: F2AZ-4635-A
$42.13 MSRP: $61.60
You Save: $19.47 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Kit - Universal Joint Repair
- Position: Front And Rear
- Replaced by: F1TZ-4635-C
Fits the following Mercury Models:
- Cougar | 1990-1993 | 6 Cyl 3.8L | 4AT AOD, 5MT
- Grand Marquis | 1982-1994 | 8 Cyl 4.2L, 8 Cyl 4.6L, 8 Cyl 5.0L, 8 Cyl 5.8L | 4AT, 4AT AOD, 4AT AODE
- Marquis | 1983-1986 | 4 Cyl 2.3L, 6 Cyl 3.3L, 6 Cyl 3.8L | 3AT C3, 3AT C5, 4MT
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View related parts
Mercury U-Joint Repair Kit
Part Number: C3AZ-4635-L
$10.62 MSRP: $14.75
You Save: $4.13 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Kit - Universal Joint Repair; Universal Joints
- Position: Front And Rear
Fits the following Mercury Models:
- Cougar | 1987-1988 | 6 Cyl 3.8L, 8 Cyl 5.0L | 4AT AOD
- Grand Marquis | 1980-1988 | 8 Cyl 4.2L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT, 3AT C4, 3AT C6, 4AT AOD
- Marquis | 1983-1986 | 4 Cyl 2.3L, 6 Cyl 3.3L, 6 Cyl 3.8L | 3AT C3, 3AT C5, 4MT
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Mercury Universal Joint

We offer a wide variety of genuine Mercury Universal Joints at competitive prices online. Our OEM Mercury Universal Joints come with the assurance of a manufacturer's warranty, alongside a hassle-free return policy and prompt delivery service, ensuring a worry-free shopping experience.

Mercury Universal Joint Parts Questions & Experts Answers

U-Joint
C3AZ-4635-J
Q: How to overhaul front Universal Joint on Mercury Bobcat?
A:
Clean away all traces of dirt and grease from the snap-rings located on the ends of the bearing cups. Remove the snap-rings by pressing their open ends together with a pair of pliers, and lever them out with a screwdriver, If they are difficult to remove, tap the bearing cup face resting on the top of the spider with a soft-faced hammer which will ease the pressure on the snap-ring. Take off the bearing cups on the driveshaft yoke. To do this select two sockets from a socket spanner set, one large enough to fit completely over the bearing cup and the other smaller than the bearing cup. Open the jaws of the vise and with the sockets opposite each other and the universal joint in between, tighten the vise and so force the narrower socket to move the opposite cup partially out of the yoke into the larger socket. Remove the cup with a pair of pliers. Remove the opposite cup.and then free the yoke from the driveshaft. To remove the remaining two cups now repeat the instructions, or use a socket and hammer. Recover the thrust bearing from inside each cup and remove the seal from the base of each spider journal. Before reassembling, using new parts as necessary, thoroughly clean out the yokes and journals. Fit new oil seals to the spider journals and then assemble the needle rollers in the bearing cups with the assistance of some thin grease. Fill each bearing cup about one third full with a universal grease.not forgetting to refit the thrust bearings first. Refit the bearing cups on the spider and tap the bearings home so that they lie squarely in position. Replace the snap-rings and settle the cups by tapping the whole assembly with a soft faced hammer. Check that angular movement of the universal joint is free throughout its full range without signs of stiffness.