31 Drivetrain parts are listed for the 1978 Saab 99, in 8 part types, covering both the 2.0L L4 and the 2.0L L4 Turbocharged. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 1978 Saab 99, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. 24 parts of the 31 listed are Differential Carrier Bearing / Race (10 parts), Differential Pinion Bearing / Race (9 parts) and CV Joint Boot (5 parts). The other 5 part types cover the remaining 7 parts.
The 1978 Saab 99 was sold with both the 2.0L L4 and the 2.0L L4 Turbocharged. All 31 parts on this page fit every engine.
11 brands supply drivetrain parts for the 1978 Saab 99, led by SKF (8 parts), SCHAEFFLER (7 parts) and DORMAN (3 parts), plus 8 more brands. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1978 Saab 99. 5 parts have it, including DORMAN 03680 (CV Joint Boot) and WJB / INMOTION PARTS WTA35 (Differential Carrier Bearing / Race). Each part number opens a page with every vehicle that part fits.
Axle Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CENTRIC Fits: all 1978 99 engines | 41738000 | 🇺🇸 US 🇨🇦 CA | Rear Inner | View on Amazon |
This table covers the seals where an axle shaft exits the housing. 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.
One part is listed for the 1978 Saab 99 — CENTRIC 41738000.
CV Joint Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: all 1978 99 engines | 03680 | 🇺🇸 US 🇨🇦 CA | OuterJoint Diameter 3.83" | View on Amazon |
| DORMAN Fits: all 1978 99 engines | 614001 | 🇺🇸 US 🇨🇦 CA | Joint Diameter 3.58"Shaft End Inside Diameter .93" | View on Amazon |
| DORMAN Fits: all 1978 99 engines | 614002 | 🇺🇸 US 🇨🇦 CA | Joint Diameter 3.3"Shaft End Inside Diameter 0.87" | View on Amazon |
| GKN Fits: all 1978 99 engines | 300403 | 🇺🇸 US 🇨🇦 CA | Front OuterManual trans. | View on Amazon |
| PROFESSIONAL PARTS SWEDEN Fits: all 1978 99 engines | 47343073 | 🇺🇸 US 🇨🇦 CA | Fits Front Right Inner | View on Amazon |
This table covers the boots that keep grease in a CV joint. Typical signs include a split boot, grease flung around the joint, or a click once grit is inside. A boot caught early is a kit. Once the joint has clicked, the joint itself is usually worn.
5 CV Joint Boot parts are listed for the 1978 Saab 99, from DORMAN, GKN and PROFESSIONAL PARTS SWEDEN. DORMAN 03680 carries the "Popular" badge. All of them fit every engine offered in the 1978 99.
Part numbers include DORMAN 03680, DORMAN 614001 and DORMAN 614002, among others listed above.
Differential Carrier Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Popular Fits: all 1978 99 engines | WTA35 | 🇺🇸 US 🇨🇦 CA | Bearing Shape: CylindricalBearing & Race Set | View on Amazon |
| WJB / INMOTION PARTS Fits: all 1978 99 engines | WTLM501310 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: all 1978 99 engines | A35 | 🇺🇸 US 🇨🇦 CA | GoldIncludes LM501349 & LM501310 | View on Amazon |
| BCA Fits: all 1978 99 engines | NBA35 | 🇺🇸 US 🇨🇦 CA | Bearing Shape: Cylindrical or Taper Bearing SetBearing & Race | View on Amazon |
| NATIONAL Fits: all 1978 99 engines | LM501349 | 🇺🇸 US 🇨🇦 CA | Fits Automatic trans.with Borg-Warner T35TB Transmission | View on Amazon |
| NATIONAL Fits: all 1978 99 engines | A35 | 🇺🇸 US 🇨🇦 CA | Taper Bearing Set Includes Cup and ConeBearing & Race Set | View on Amazon |
| SCHAEFFLER Fits: all 1978 99 engines | KLM501349 | 🇺🇸 US 🇨🇦 CA | Bearing Only | View on Amazon |
| SKF Fits: all 1978 99 engines | LM501310VP | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| SKF Fits: all 1978 99 engines | BR35 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| TIMKEN Fits: all 1978 99 engines | SET45 | 🇺🇸 US 🇨🇦 CA | Bearing & Race Set Bearing and Race Set | View on Amazon |
This table covers the bearings and races that support the differential carrier.
10 Differential Carrier Bearing / Race parts are listed for the 1978 Saab 99, from WJB / INMOTION PARTS, NATIONAL, SKF and 4 other brands. WJB / INMOTION PARTS WTA35 carries the "Popular" badge. All of them fit every engine offered in the 1978 99.
In the Economy grade, WJB / INMOTION PARTS supplies 2 parts: the catalog's value-priced group. A representative part number is WJB / INMOTION PARTS WTA35.
The Standard Replacement section lists 8 options from NATIONAL, SKF, ACDELCO and 3 other brands — built to original-equipment specification. ACDELCO A35 is listed in this group.
Differential Pinion Bearing / Race
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WJB / INMOTION PARTS Fits: all 1978 99 engines | WTLM501310 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKF Popular Fits: all 1978 99 engines | BR35 | 🇺🇸 US 🇨🇦 CA | Rear OuterAutomatic trans. | View on Amazon |
| SKF Popular Fits: all 1978 99 engines | BR52 | 🇺🇸 US 🇨🇦 CA | RearManual trans. | View on Amazon |
| SCHAEFFLER Fits: all 1978 99 engines | M88010 | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| SCHAEFFLER Fits: all 1978 99 engines | KLM501349 | 🇺🇸 US 🇨🇦 CA | Bearing Only | View on Amazon |
| SCHAEFFLER Fits: all 1978 99 engines | KT63 | 🇺🇸 US 🇨🇦 CA | RearManual trans. | View on Amazon |
| SCHAEFFLER Fits: all 1978 99 engines | KM88048 | 🇺🇸 US 🇨🇦 CA | RearManual trans. | View on Amazon |
| SKF Fits: all 1978 99 engines | LM501310VP | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
| SKF Fits: all 1978 99 engines | M88010VP | 🇺🇸 US 🇨🇦 CA | Race | View on Amazon |
This table covers the bearings and races on the differential pinion.
9 Differential Pinion Bearing / Race parts for the 1978 Saab 99 come from 3 brands — SKF, SCHAEFFLER and WJB / INMOTION PARTS. The "Popular" part is SKF BR35. Every part fits both the 2.0L L4 and the 2.0L L4 Turbocharged.
The Economy section: 1 option from WJB / INMOTION PARTS. WJB / INMOTION PARTS WTLM501310 is listed in this group.
Standard Replacement: 8 parts, from SKF and SCHAEFFLER. A representative part number is SKF BR35.
Listed part numbers: SKF BR35, WJB / INMOTION PARTS WTLM501310 and SKF BR52, plus the other parts above.
Differential Pinion Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKF Fits: all 1978 99 engines | 99162 | 🇺🇸 US 🇨🇦 CA | Shaft Diameter: 1.625 In | View on Amazon |
This table covers the wear sleeves used to restore a grooved pinion seal surface.
One part is listed for the 1978 Saab 99 — SKF 99162.
Differential Pinion Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SCHAEFFLER Fits: all 1978 99 engines | SS5074 | 🇺🇸 US 🇨🇦 CA | RearAutomatic trans. | View on Amazon |
| SKF Fits: all 1978 99 engines | 16078 | 🇺🇸 US 🇨🇦 CA | RearAutomatic trans. | 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.
2 Differential Pinion Seal parts are listed for the 1978 Saab 99, from SCHAEFFLER and SKF. All of them fit every engine offered in the 1978 99.
Listed part numbers: SCHAEFFLER SS5074 and SKF 16078.
Differential Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TIMKEN Fits: all 1978 99 engines | KWK99139 | 🇺🇸 US 🇨🇦 CA | Kwik-Sleeve | View on Amazon |
This table covers the wear sleeves used to restore a Differential seal surface.
This group shows a single part: TIMKEN KWK99139.
Differential Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SCHAEFFLER Fits: all 1978 99 engines | SS2450 | 🇺🇸 US 🇨🇦 CA | Automatic trans.7 MM Width | View on Amazon |
| TIMKEN Fits: all 1978 99 engines | 223510 | 🇺🇸 US 🇨🇦 CA | Fits Automatic trans.or Manual trans. | 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 1978 Saab 99 come from 2 brands — SCHAEFFLER and TIMKEN. Every part fits both the 2.0L L4 and the 2.0L L4 Turbocharged.
This group includes SCHAEFFLER SS2450 and TIMKEN 223510.
Buying Drivetrain Parts for a 1978 Saab 99
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- You do not need to pick an engine: every drivetrain part on this page fits both the 2.0L L4 and the 2.0L L4 Turbocharged.
- 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 Carrier Bearing / Race and Differential Pinion Bearing / Race .
Frequently Asked Questions
How many drivetrain parts fit the 1978 Saab 99?
Our catalog currently lists 31 drivetrain parts for the 1978 Saab 99 across 8 subcategories and 11 brands, covering both the 2.0L L4 and the 2.0L L4 Turbocharged. Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 1978 Saab 99 engines?
No. On this page every drivetrain part fits both the 2.0L L4 and the 2.0L L4 Turbocharged. You do not need to pick an engine to choose the right row — use the notes for position and trim.
What are the signs of drivetrain problems on a 1978 Saab 99?
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 1978 Saab 99 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 1978 Saab 99?
Every part on this page already fits both the 2.0L L4 and the 2.0L L4 Turbocharged. 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 1978 Saab 99
Drivetrain Parts for Other Saab 99 Years
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