1978 Pontiac LeMans Differentials
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Richmond®Excel™ Rear Ring and Pinion Gear SetPontiac Grand LeMans / LeMans with 10 Bolt, GM 7.5" Series Axle / GM 7.625" Series Axle 1978, Excel™ Rear Ring and Pinion Gear Set by Richmond®. Designed utilizing the latest technology, this product by Richmond features premium...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$218.99 - $256.99 - Motive Gear®Rear A-Line Ring and Pinion Gear SetPontiac Grand LeMans / LeMans with 3.23 and Up Gear Ratio, 10 Bolt, GM 7.5" Series Axle 1978, Rear A-Line Ring and Pinion Gear Set by Motive Gear®. Motive Gear stock performance ring and pinions are excellent replacements for OE....Quiet operationComputer controlled heat treatment$192.44 - $206.49
- Auburn Gear®Grip-N-Loc™ Rear DifferentialPontiac Grand LeMans / LeMans 1978, Grip-N-Loc™ Rear Differential by Auburn Gear®. Auburn Gear’s most advanced limited slip differential, the Grip-N-Loc™, builds upon exclusive technologies found in the previous limited slip line,...Upgrades vehicles for safe transfer of increased power/torque across the axleCase material is up to 50% stronger than OE cases$611.95 - $655.37
- Dorman®OE Solutions™ Rear Differential Ring and PinionPontiac LeMans 1978, OE Solutions™ Rear Differential Ring and Pinion by Dorman®. The gears of Dorman’s Differential Ring and Pinion are engineered to effectively transfer torque from the driveshaft to the axles. It's robust steel...Replacement eliminates driveline grinding and whining soundsDirect replacement for a proper fit$221.76 - $591.45
- Spicer®Rear Mini SpoolPontiac LeMans with GM 8.5" Series Axle 1978, Rear Mini Spool by Spicer®. Designed to replace the spider gears inside the differential case, Spicer mini spools are a fast, effective way to get full lock-up on the dirt track or off-road.Expertly crafted from premium materialsDesigned to match rigorous quality standards$126.61 - $155.68
- Richmond®Rear Mini SpoolPontiac Grand LeMans / LeMans with GM 7.5" Series Axle 1978, Rear Mini Spool by Richmond®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking speed and performance with this premium...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$88.94
- Dorman®OE Solutions™ Rear Differential Positive Unit AssemblyPontiac Grand LeMans / LeMans 1978, OE Solutions™ Rear Differential Positive Unit Assembly by Dorman®. Hard use and poor lubrication can wear out a differential. Restore original performance with this replacement differential carrier...Direct replacement - this differential carrier fits in place of this vehicle's original equipment carrier100% new - this differential carrier uses all-new components$679.13
- Yukon Gear & Axle®Dura Grip™ DifferentialPontiac LeMans 1978, Dura Grip™ Differential by Yukon Gear & Axle®. The Yukon Dura Grip an example of the popular clutch plate limited slips that appeared as OE equipment. Steel clutch plates, half of which are covered with a friction...Provides aggressive yet smooth traction to give you the confidence and performance you needFully rebuildable 4 spring design with composite clutches$781.89 - $936.89
- Yukon Gear & Axle®Front and Rear Mini SpoolPontiac LeMans with GM 8.5" Series Axle 1978, Front and Rear Mini Spool by Yukon Gear & Axle®. Mini spools are a low-cost traction option for vehicles looking for full-time lockup. The mini spool installs into a standard open carrier...Provides 100% traction to both wheels at all timesInstalls into standard open carrier case$164.89 - $183.89
- Yukon Gear & Axle®Grizzly Locker™ Front and Rear DifferentialPontiac LeMans with GM 8.5" Series Axle 1978, Grizzly Locker™ Front and Rear Differential by Yukon Gear & Axle®. The Yukon Grizzly Locker is the ultimate in mechanical locking differentials for street, off-road, and drag racing....Available for many popular off-road & performance applicationsPatent pending design reduces common failures$1,031.89
- Yukon Gear & Axle®Rear High Performance Ring and Pinion Gear SetPontiac LeMans with GM 8.5" Series Axle 1978, Rear High Performance Ring and Pinion Gear Set by Yukon Gear & Axle®. Yukon Ring and Pinion sets give you the confidence of knowing you’re running gears designed for the harshest of...Smooth finishEasy Set-Up$359.89 - $587.89
- Richmond®Rear Street Gear Ring and Pinion Gear SetPontiac LeMans with 10 Bolt, GM 7.5" Series Axle 1978, Rear Street Gear Ring and Pinion Gear Set by Richmond®. Richmond Gear ring and pinions are perfect for any vehicle where performance and durability matters. Made from first-run...Outstanding design and state of the art manufacturing techniquesExtensive testing ensures uncompromising reliability$305.99 - $489.99
- AllStar Performance®Ring and Pinion Gear SetPontiac LeMans with 10 Bolt 1978, Ring and Pinion Gear Set by AllStar Performance®. Drive with confidence and have the edge with AllStar Performance. With such a ground-breaking design and elaborate development, you’ll never run into...Precise manufacturing and high-grade materialsExceptional performance at a competitive price$169.99
- Eaton®Detroit Truetrac™ Rear DifferentialPontiac LeMans with 10 Bolt 1978, Detroit Truetrac™ Rear Differential by Eaton®. The Detroit Truetrac is a helical-gear style performance differential that maximizes wheel traction and enhances driving and handling characteristics....Helical-style pinion gearsLimited-slip operation$587.99 - $634.99
- Eaton®Posi™ Rear DifferentialPontiac LeMans with 10 Bolt 1978, Posi™ Rear Differential by Eaton®. The Eaton Posi limited-slip differential prevents wheel slip before it can get started. To do that, carbon disc clutch packs, preloaded by a central spring assembly,...Superior rebuildable designRace-bred carbon friction discs$605.99 - $689.99
- Motive Gear®Performance Rear Ring and Pinion Gear SetPontiac LeMans with 10 Bolt, GM 7.5" Series Axle 1978, Performance Rear Ring and Pinion Gear Set by Motive Gear®. Motive Gear Performance ring and pinions are perfect for dedicated racing or off-road vehicle. Gear sets are made from...Central contact patternCNC start to finish$291.99 - $515.99
- Motive Gear®Performance Rear Ring and Pinion Gear SetPontiac LeMans with 10 Bolt with GM 7.5" Series Axle 1978, Performance Rear Ring and Pinion Gear Set by Motive Gear®. Motive Gear Performance ring and pinions are perfect for dedicated racing or off-road vehicle. Gear sets are made from...Central contact patternCNC start to finish$291.99 - $515.99
- Motive Gear®Rear Mini SpoolPontiac Grand LeMans / LeMans with 26 Spline, Open Differential, 10 Bolt, GM 7.5" Series Axle 1978, Rear Mini Spool by Motive Gear®. Dominate the track or hit the trails with confidence by fine tuning your vehicle for neck-breaking...Motive Gear uses the highest quality standards of manufacturingFrom machining and finishing to heat treatment company demand the best$83.40
- Motive Gear®Rear Ring and Pinion Gear SetPontiac Grand LeMans / LeMans 1978, Rear Ring and Pinion Gear Set by Motive Gear®. Motive Gear stock performance ring and pinions are excellent replacements for OE. Experienced installers prefer ring and pinions for easy setup, superior...Quiet operationComputer controlled heat treatment$195.87 - $434.99
- SKF®Rear Differential Pinion SealPontiac Grand LeMans / LeMans 1978, Rear Differential Pinion Seal by SKF®. Designed utilizing the latest technology, this product by SKF features premium quality and will perform better than advertised. Perfect for your vehicle and...Superior protection against dirt and waterManufactured with high-quality tested design and materials for correct fit$7.91 - $14.11
- Richmond®Excel™ Rear Differential Carrier Gear KitPontiac LeMans 1978, Excel™ Rear Differential Carrier Gear Kit by Richmond®. Designed utilizing the latest technology, this product by Richmond features premium quality and will perform better than advertised. Perfect for your vehicle...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$135.03 - $149.32
- SKF®Rear Differential Pinion BearingPontiac Grand LeMans / LeMans 1978, Rear Differential Pinion Bearing by SKF®. When it comes to a top-notch replacement for your worn out factory part, this OE-quality differential component is right what the doctor ordered if you need...Excellent replacement for your worn out or faulty partDesigned to restore original performance and reliability$11.68 - $16.32
- Timken®Rear Differential BearingPontiac Grand LeMans / LeMans 1978, Rear Differential Bearing by Timken®. Get optimum vehicle performance with Timken bearings. Timken manufactures ball bearings, cylindrical roller bearings, and tapered roller bearings, and all feature...Designed to effectively reduce frictionUltimate load handling capability$12.53 - $19.64
- Timken®Rear Differential Bearing and Seal KitPontiac Grand LeMans / LeMans with 8.5" Ring Gear 1978, Rear Differential Bearing and Seal Kit by Timken®. Get optimum vehicle performance with Timken bearings. Timken manufactures ball bearings, cylindrical roller bearings, and tapered...Designed to effectively reduce frictionUltimate load handling capability$75.33 - $135.14
- Timken®Rear Differential Pinion BearingPontiac Grand LeMans / LeMans with 7.5" Ring Gear 1978, Rear Differential Pinion Bearing by Timken®. Get optimum vehicle performance with Timken bearings. Timken manufactures ball bearings, cylindrical roller bearings, and tapered...Designed to effectively reduce frictionUltimate load handling capability$13.49 - $22.67
- Timken®Rear Differential Pinion SealPontiac Grand LeMans / LeMans 1978, Rear Differential Pinion Seal by Timken®. Timken offers the right seal to keep your vehicle running optimally. Timken seals provide ultimate protection from contaminants and help retain lubricants and...Machined rubber sealing edge provides greater accuracy and consistency and a better sealing surfaceAn extra dust lip helps keep harmful contaminants out and protects against rust and corrosion$8.50 - $13.62
- Timken®Rear Differential RacePontiac Grand LeMans / LeMans 1978, Rear Differential Race by Timken®. Precision manufactured using premium materials and made by the company that is trusted by many carmakers, the Timken race is the right choice if you opt for a highly...OE quality fit, performance, and reliabilityCost-effective friction management solution$7.10 - $12.16
- National®Rear Differential BearingPontiac Grand LeMans / LeMans with 7.5" Ring Gear, GMC Series Axle 1978, Rear Differential Bearing by National®. This bearing is manufactured from high quality steel and constructed utilizing state-of-the-art computer controlled heat...Premium bearing design matches OEM specificationsPrecision manufactured using premium-grade steel for outstanding durability and performance$12.45
- ACDelco®Gold™ Differential Carrier BearingPontiac LeMans 1978, Gold™ Differential Carrier Bearing by ACDelco®. Designed utilizing the latest technology, this product features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$13.45
- SKF®Rear Differential Pinion RacePontiac Grand LeMans / LeMans 1978, Rear Differential Pinion Race by SKF®. Designed utilizing the latest technology, this product by SKF features premium quality and will perform better than advertised. Perfect for your vehicle and...Excellent replacement for your worn out or faulty partDesigned to restore original performance and reliability$6.11 - $8.84
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