Synergy Jeep JL/JT Heavy Duty Ball Joints Knurled (1 Upper/1 Lower)

Synergy Jeep JL/JT Heavy Duty Ball Joints Knurled (1 Upper/1 Lower)

Marsoni

M251S

$175.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Synergy Jeep JL/JT Heavy Duty Ball Joints Knurled (1 Upper/1 Lower)SKU: 4170 04 Heavy Duty Ball Joint Kit for Jeep Wrangler JL, JLU, and Gladiator JT Synergy Manufacturing Heavy Duty Ball Joint Kit, the ultimate upgrade for off road enthusiasts and daily drivers alike. Engineered to replace the factorys inferior plastic nylon bearing design, these fully greaseable, metal on metal ball joints deliver unmatched durability, longevity, and precision steering. Say goodbye to steering wander, play, and premature wear

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Fast: 2-3 business days
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We offer a 30-day return/exchange service after receiving.
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I'm a former dealership mechanic and for years I used whatever we had in the bulk tank which was usually Valvoline conventional. My last job was at a German car dealership. Castrol was the oil recommended by the German manufacturers and that's when I started using Castrol. In my experience Castrol is an excellent oil. My 2014 Ford just rolled over 242,000 miles and even with factory 10,000 mile oil change intervals, from what I can see through the oil fill the top end of the engine is still clean. I've never had to remove the valve cover. It's using about a quart between oil 10,000 mile oil changes which is great because when it was new it used about a 1/2 quart between changes.

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Reviewed in the United States on January 28, 2026

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Doraiky

Charlottesville, US

★★★★★ 5

Bueno

Size: 5 Quarts

Bueno

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Reviewed in the United States on June 3, 2026

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E.B.

Los Angeles, US

★★★★★ 5

switched from Mobil 1

Size: 5 Quarts

always used Mobil 1, my 2003 accord v6 always burned a little bit of oil, switched to this and it barely burns any at all now. will continue to use this from now on.

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Reviewed in the United States on April 27, 2026

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Joe S

Belleville, US

★★★★★ 4

ITS GOOD OIL

Size: 5 Quarts

OVERALL NOT BAD BUT USING IT TO SEASON A CAST IRON WILL CREATE A BIT TOO DARK OF A SHEEN. WISH THE MANUFACTURER MENTIONED THAT

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Reviewed in the United States on April 8, 2025

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