MOOG 377 Greaseable Super Strength Universal Joint for Jeep Wrangler
- Super Strength greaseable universal joint
- Jeep Wrangler application, years not listed
- Alloy steel and nitrile materials
- 16 ounces
- Part number 377
Last refreshed Oct 3, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
Alloy steel and nitrile seals make up this greaseable joint from the stronger MOOG line. Cap dimensions and model years are not in the listing.
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ASIN: B009HQJPAYModel: 377Category: Universal Joints
Overview
An alloy steel cross and nitrile seals make up this MOOG Super Strength joint, with a grease fitting so it can be serviced. It is described as quick to install.
The Super Strength line suits an owner who wants a stronger joint than a plain replacement, and the alloy steel construction supports that. The limit is the missing detail: years, driveshaft position and bearing cap size are not given.
Who it's for
A Wrangler owner, particularly one who drives off road, may want the stronger series of joint. Sealed-joint fans and drivers of other makes should look elsewhere.
Pros and cons
- Alloy steel construction
- Greaseable for service
- Super Strength series
- Listed for the Wrangler
- Wrangler years not listed
- Cap size not listed
- Front or rear position not stated
Performance notes
A stronger alloy steel cross resists twisting loads, and the nitrile seals keep grease in around the bearings. Periodic greasing is what extends the life of the bearings. The listing gives no strength rating.
Specifications
| Brand | MOOG |
|---|---|
| Model | 377 |
| Dimensions & fit | |
| Item weight | 16 ounces |
| Construction & materials | |
| Materials | Alloy Steel, nitrile |
| Included components | |
| Unit count | 1 Count |
| Other details | |
| Fits | Jeep Wrangler |
| Series | Super Strength |
| Model number | 377 |
| Lubrication | Greaseable |
Frequently asked questions
How big is the MOOG 377 universal joint?
The listing gives a weight of 16 ounces but no cap diameter or overall dimensions.
Which Wrangler years does it fit?
The title names the Jeep Wrangler without years, so match the part number to the old joint.
Is it greaseable?
Yes, the title calls it greaseable.