The 1986 Excalibur Phaeton has 30 drivetrain parts with verified fitment on this page — 8 part types and 7 brands, covering both the 5.0L 305cid V8 and the 5.7L 350cid V8. Each part includes a manufacturer part number and application notes.
On the 1986 Excalibur Phaeton, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. 21 parts of the 30 listed are Differential Pinion Bearing / Race (14 parts), Differential Pinion Seal (4 parts) and Differential Carrier Bearing / Race (3 parts). The other 5 part types cover the remaining 9 parts.
The 1986 Excalibur Phaeton was sold with both the 5.0L 305cid V8 and the 5.7L 350cid V8. 25 parts fit every engine; the other 5 are engine-specific. Each part shows which engine(s) it fits.
7 brands supply drivetrain parts for the 1986 Excalibur Phaeton, led by WJB / INMOTION PARTS (10 parts), BCA (8 parts) and NATIONAL (4 parts), plus 4 more brands. Quality grades include Economy and Standard Replacement.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1986 Excalibur Phaeton. 3 parts have it, including WJB / INMOTION PARTS WTM88048 (Differential Pinion Bearing / Race) and WJB / INMOTION PARTS WTM802048 (Differential Pinion Bearing / Race). Each part number opens a page with every vehicle that part fits.
Axle Shaft Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Fits: all 1986 Phaeton engines | B2412 | 🇺🇸 US | Rearwith 8.5 IN Ring Gear | View on Amazon |
This table covers the Axle Shaft bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
This group shows a single part: NATIONAL B2412.
Differential Carrier Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Fits: all 1986 Phaeton engines | WTA36 | 🇺🇸 US | Rearwith 8.5 IN Ring Gear | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: all 1986 Phaeton engines | A36 | 🇺🇸 US 🇨🇦 CA | GoldSet | View on Amazon |
| BCA Fits: all 1986 Phaeton engines | NBA36 | 🇺🇸 US | Taper Bearing SetIncludes Cup and Cone | View on Amazon |
This table covers the bearings and races that support the differential carrier.
3 Differential Carrier Bearing / Race parts are listed for the 1986 Excalibur Phaeton, from WJB / INMOTION PARTS, ACDELCO and BCA. All of them fit every engine offered in the 1986 Phaeton.
In the Economy grade, WJB / INMOTION PARTS supplies 1 part: the catalog's value-priced group. A representative part number is WJB / INMOTION PARTS WTA36.
The Standard Replacement section lists 2 options from ACDELCO and BCA — built to original-equipment specification. ACDELCO A36 is listed in this group.
This group includes WJB / INMOTION PARTS WTA36, ACDELCO A36 and BCA NBA36.
Differential Pinion Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Popular Fits: all 1986 Phaeton engines | WTM88048 | 🇺🇸 US | Bearing Shape: Cylindrical | View on Amazon |
| WJB / INMOTION PARTS Popular Fits: all 1986 Phaeton engines | WTM802048 | 🇺🇸 US | Bearing Shape: Cylindrical | View on Amazon |
| FAMOUS BRAND Fits: 5.0L 305cid V8 | SM802011 | 🇺🇸 US 🇨🇦 CA | RearInner | View on Amazon |
| FAMOUS BRAND Fits: 5.0L 305cid V8 | SM88010 | 🇺🇸 US 🇨🇦 CA | RearOuter | View on Amazon |
| FAMOUS BRAND Fits: 5.0L 305cid V8 | SM802048 | 🇺🇸 US 🇨🇦 CA | RearInner | View on Amazon |
| ULTRA-POWER Fits: 5.0L 305cid V8 | WTM88048 | 🇺🇸 US 🇨🇦 CA | RearOuter | View on Amazon |
| ULTRA-POWER Fits: 5.0L 305cid V8 | WTM802048 | 🇺🇸 US 🇨🇦 CA | RearInner | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1986 Phaeton engines | WTM802011 | 🇺🇸 US | Race | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1986 Phaeton engines | WTM88010 | 🇺🇸 US | RaceCup Outside Diameter (In): 2.6880000000000002 In | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Popular Fits: all 1986 Phaeton engines | NBM802048 | 🇺🇸 US | Bearing Shape: Cylindrical | View on Amazon |
| BCA Fits: all 1986 Phaeton engines | NBM88010 | 🇺🇸 US | Race | View on Amazon |
| BCA Fits: all 1986 Phaeton engines | NBM802011 | 🇺🇸 US | Race | View on Amazon |
| BCA Fits: all 1986 Phaeton engines | NBM88048 | 🇺🇸 US | Bearing Shape: Cylindrical | View on Amazon |
| BCA Fits: all 1986 Phaeton engines | NBBR52 | 🇺🇸 US | Bearing & Race | View on Amazon |
This table covers the bearings and races on the differential pinion.
14 Differential Pinion Bearing / Race parts for the 1986 Excalibur Phaeton come from 4 brands — BCA, WJB / INMOTION PARTS, FAMOUS BRAND and 1 other brand. The "Popular" part is WJB / INMOTION PARTS WTM88048. 9 parts fit every engine; the other 5 are engine-specific.
The Economy section: 9 options from WJB / INMOTION PARTS, FAMOUS BRAND and ULTRA-POWER. WJB / INMOTION PARTS WTM88048 is listed in this group.
Standard Replacement: 5 parts, from BCA. A representative part number is BCA NBM802048.
Differential Pinion Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SCHAEFFLER Fits: all 1986 Phaeton engines | SS3478 | 🇺🇸 US | Rear | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1986 Phaeton engines | WS99187 | 🇺🇸 US | Rear Outerwith 8.5 IN Ring Gear | View on Amazon |
This table covers the wear sleeves used to restore a grooved pinion seal surface.
2 Differential Pinion Repair Sleeve parts are listed for the 1986 Excalibur Phaeton, from SCHAEFFLER and WJB / INMOTION PARTS. All of them fit every engine offered in the 1986 Phaeton.
Part numbers include SCHAEFFLER SS3478 and WJB / INMOTION PARTS WS99187.
Differential Pinion Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Fits: all 1986 Phaeton engines | NS9316 | 🇺🇸 US | Rear Outerwith Spicer 44 Axle(S) | View on Amazon |
| NATIONAL Fits: all 1986 Phaeton engines | 9316 | 🇺🇸 US | Rear Outerwith 8.5 IN Ring Gear | View on Amazon |
| SCHAEFFLER Fits: all 1986 Phaeton engines | SS3226 | 🇺🇸 US | Type of construction: FrsaiRubber, Spring, Auxiliary Lip, Inner shell | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1986 Phaeton engines | WS9316 | 🇺🇸 US | Rear Outerwith 8.5 IN Ring Gear | View on Amazon |
This table covers the seals at the differential pinion yoke. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
4 Differential Pinion Seal parts are listed for the 1986 Excalibur Phaeton, from BCA, NATIONAL, SCHAEFFLER and 1 other brand. All of them fit every engine offered in the 1986 Phaeton.
Listed part numbers: BCA NS9316, NATIONAL 9316 and SCHAEFFLER SS3226, plus the other parts above.
Differential Rebuild Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Fits: all 1986 Phaeton engines | WKRA339A | 🇺🇸 US | Rearwith 8.5 IN Ring Gear | View on Amazon |
This table covers kits that group the bearings, races and seals for a differential rebuild.
This group shows a single part: WJB / INMOTION PARTS WKRA339A.
Differential Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Fits: all 1986 Phaeton engines | NS88187 | 🇺🇸 US | Rearwith Spicer 44 Axle(S) | View on Amazon |
| NATIONAL Fits: all 1986 Phaeton engines | 99150 | 🇺🇸 US | Rearwith 8.5 IN Ring Gear | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1986 Phaeton engines | WS99150 | 🇺🇸 US | Rearwith 8.5 IN Ring Gear | View on Amazon |
This table covers the wear sleeves used to restore a Differential seal surface.
3 Differential Repair Sleeve parts for the 1986 Excalibur Phaeton come from 3 brands — BCA, NATIONAL and WJB / INMOTION PARTS. Every part fits both the 5.0L 305cid V8 and the 5.7L 350cid V8.
This group includes BCA NS88187, NATIONAL 99150 and WJB / INMOTION PARTS WS99150.
Differential Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Fits: all 1986 Phaeton engines | 473227V | 🇺🇸 US | Viton | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1986 Phaeton engines | WS473227V | 🇺🇸 US | RearViton Type | View on Amazon |
This table covers the seals at the Differential. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
2 Differential Seal parts for the 1986 Excalibur Phaeton come from 2 brands — NATIONAL and WJB / INMOTION PARTS. Every part fits both the 5.0L 305cid V8 and the 5.7L 350cid V8.
This group includes NATIONAL 473227V and WJB / INMOTION PARTS WS473227V.
Buying Drivetrain Parts for a 1986 Excalibur Phaeton
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- Match the engine first. Some drivetrain parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the differential or transfer-case fluid with any axle or seal job while everything is already open.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Differential Pinion Bearing / Race and Differential Pinion Seal .
Frequently Asked Questions
How many drivetrain parts fit the 1986 Excalibur Phaeton?
Our catalog currently lists 30 drivetrain parts for the 1986 Excalibur Phaeton across 8 subcategories and 7 brands, covering both the 5.0L 305cid V8 and the 5.7L 350cid V8. Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 1986 Excalibur Phaeton engines?
Some do. 25 parts fit every engine; the other 5 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of drivetrain problems on a 1986 Excalibur Phaeton?
Common symptoms include clicking in tight turns, a clunk when shifting between drive and reverse, vibration that builds with speed, or gear oil on the inside of a wheel. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the differential or transfer-case fluid with any axle or seal job while everything is already open.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 1986 Excalibur Phaeton was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 1986 Excalibur Phaeton?
First match the engine — each row shows which engine(s) the part fits. Then a torn CV boot caught early is a cheap boot kit; caught late it is a whole axle — inspect before deciding which to buy. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1986 Excalibur Phaeton
Drivetrain Parts for Other Excalibur Phaeton Years
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