Go-Parts
Cart 0
Your cart is empty
Add an item to see it appear here.

Automatic Transmission Extension Housing Seal - Rear (National Bearing) for 1955-2000 American Motors, Apollo, Avanti, Bizzarrini, Buick, Cadillac, Chevrolet, Fiat, Geo, GMC, Iso, Isuzu, Jeep, Oldsmobile, Opel, Pontiac, Studebaker, & Suzuki NEW

$ 6 .69

Product Notes

Position: Rear
with 2-Speed General Motors Super Turbine 300 Transmission

Brand: National Bearing
Condition: New
LIFE
TIME
Lifetime Warranty Included
This part is backed by our industry-leading lifetime warranty. Shop with total confidence.
100%money-back 120-dayreturns OE-gradequality
Wrenchy the Robot

Meet Wrenchy - The Amazing Parts Assistant!

Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.

Specifications & Info



Vehicle Fitment Guide

This part fits the following vehicles:

Make Models
American Motors Ambassador, AMX, Concord, Eagle, Gremlin, Hornet, Javelin, Matador, Pacer, Spirit
Apollo GT
Avanti II
Bizzarrini GT America, GT Strada 5300
Buick Apollo, Centurion, Century, Commercial Chassis, Electra, Estate Wagon, Gran Sport, GS, GS 350, GS 400, GS 455, Invicta, LeSabre, Opel, Regal, Riviera, Roadmaster, Skyhawk, Skylark, Special, Sportwagon, Wildcat
Cadillac Brougham, Commercial Chassis, DeVille, Fleetwood, Series 60 Fleetwood, Seville
Chevrolet Astro, Bel Air, Biscayne, Blazer, Brookwood, C10, C10 Panel, C10 Pickup, C10 Suburban, C1500, C20, C20 Panel, C20 Pickup, C20 Suburban, C2500, C30, C30 Panel, C30 Pickup, C3500, Camaro, Caprice, Chevelle, Chevette, Chevy II, Commercial Chassis, Corvette, Del Ray, El Camino, Estate, G10, G10 Van, G20, G20 Van, G30, G30 Van, Impala, K10, K10 Pickup, K10 Suburban, K1500, K20, K20 Panel, K20 Pickup, K20 Suburban, K2500, K30, K30 Pickup, K3500, K5 Blazer, Kingswood, LUV, Luv Pickup, Malibu, Monte Carlo, Monza, Nomad, Nova, One-Fifty Series, P10, P10 Series, P10 Van, P20, P20 Series, P20 Van, P30, P30 Series, P30 Van, Parkwood, R10, R10 Suburban, R1500 Suburban, R20, R20 Suburban, R2500, R2500 Suburban, R30, R3500, S10, S10 Blazer, Suburban, Townsman, Tracker, Truck, Two-Ten Series, V10, V10 Suburban, V1500 Suburban, V20, V20 Suburban, V2500 Suburban, V30, V3500, Vega, Yeoman
Fiat 124, 128, 131, Brava
GMC 100, 100-22, 1000, 1000 Series, 150, 150-22, 1500, 1500 Series, 250, 2500, 2500 Series, 300, 3000, 350-8, 3500, 370, B3500, C15, C15 Suburban, C15/C1500 Pickup, C15/C1500 Suburban, C1500, C1500 Suburban, C25, C25 Suburban, C25/C2500 Pickup, C25/C2500 Suburban, C2500, C2500 Suburban, C35, C35/C3500 Pickup, C3500, Caballero, F350, F370, FM340, FM350, G1000 Series, G15, G15/G1500 Van, G1500, G25, G25/G2500 Van, G2500, G35, G35/G3500 Van, G3500, I1000, I1500, I2500, I3500, Jimmy, K1000, K1000 Pickup, K15, K15 Suburban, K15/K1500 Pickup, K15/K1500 Suburban, K1500, K1500 Suburban, K25, K25 Suburban, K25/K2500 Pickup, K25/K2500 Suburban, K2500, K2500 Suburban, K35, K35/K3500 Pickup, K3500, L3500, LI3500, M300, P1000, P15, P15/P1500 Van, P1500, P25, P25/P2500 Van, P2500, P35, P35/P3500 Van, P3500, PB1000 Series, PB15 Series, PB1500 Series, PB25 Series, PB2500 Series, PB2500 Van, PB3500 Van, PM150, PM151, PM152, PM153, PM250, PM251, PM252, PM253, PV1000, R1500, R1500 Suburban, R2500, R2500 Suburban, R3500, S15, S15 Jimmy, Safari, Sonoma, Sprint, Suburban, Tracker, Truck, V1500, V1500 Suburban, V2500, V2500 Suburban, V3000 Forward Control, V3500
Geo Tracker
Iso Rivolta
Isuzu Hombre, Pickup
Jeep 6-226, 6-230, Cherokee, CJ5, CJ5A, CJ6, CJ6A, CJ7, Commando, Dispatcher, DJ5, DJ6, F-134, F4, F4-134, FA-134, FC170, FC170HD, Gladiator, Grand Wagoneer, J-100, J-200, J-210, J-220, J-230, J-2500, J-2600, J-2700, J-2800, J-300, J-310, J-320, J-330, J-3500, J-3600, J-3700, J-3800, J-4500, J-4600, J-4700, J-4800, J10, J20, Jeepster, M151, Scrambler, Tornado, Truck, Universal, Universal Truck, Utility, Utility Wagon, Wagoneer, Willys
Oldsmobile 442, 98, Custom Cruiser, Cutlass, Cutlass Calais, Cutlass Cruiser, Cutlass Salon, Cutlass Supreme, Cutlass Tiara, Delmont 88, Delta 88, F85, Fiesta, Jetfire, Jetstar 88, Jetstar I, Omega, Starfire, Super 88, Toronado, Vista Cruiser
Opel 1900, Deluxe, Kadett, Manta, Opel, Rallye
Pontiac Acadian, Astre, Beaumont, Bonneville, Catalina, Executive, Firebird, Grand Am, Grand LeMans, Grand Prix, Grand Safari, GTO, Laurentian, LeMans, Parisienne, Pathfinder, Phoenix, Safari, Star Chief, Strato-Chief, Sunbird, T1000, Tempest, Ventura
Studebaker Avanti, Challenger, Commander, Cruiser, Daytona, Gran, Hawk, Lark
Suzuki Sidekick

This is a universal part that fits 9,860 vehicle configurations across 18 makes.

Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Return Policy

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.

Interchange Parts

Brand Part Number
ACDelco 293-72
ACDelco 29342
American Motors 305925
American Motors 3114778
American Motors 8124893
American Motors 8127387
American Motors J8124893
BorgWarner R10H110
BorgWarner R10H110B
BorgWarner T86E110A
Chicago Rawhide 15041
Chicago Rawhide 480150
Clark Lift Truck 2601099
Clark Lift Truck 3312226
General Motors 12303046
General Motors 1243400
General Motors 1243401
General Motors 1243402
General Motors 1353997
General Motors 1358899
General Motors 1386231
General Motors 14053338
General Motors 15527577
General Motors 15546800
General Motors 15581911
General Motors 361165
General Motors 3746212
General Motors 3746213
General Motors 3781810
General Motors 3787296
General Motors 3848353
General Motors 3848354
General Motors 3871619
General Motors 3932255
General Motors 520282
General Motors 8612229
General Motors 8657791
General Motors 8673526
McCord 80408
McCord 80690
Mcquay-Norris T266D
Mopar T1338
Mopar T1370
Pioneer 759024
Sealed Power N15041
Studebaker 1553102
Timken 9613S
TransTec B29045
TransTec B29625
Trostel 224A132X12
Trostel 42301S
Trostel 54501S
Trostel A46517S
Trostel A46815
Trostel A46815S
Trostel A57501R
Trostel T6646S
Victor Reinz 40635
Victor Reinz 46098
Victor Reinz 46328
Victor Reinz 46328SF
Victor Reinz 47156
Victor Reinz 47381
Victor Reinz 49743
Victor Reinz 49747
Victor Reinz 62156
Victor Reinz 63302

Fits Years: 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000

Why Millions Choose Go-Parts

Your Go-To Place
for auto parts.

In operation since 2007. Trusted by over a million DIYers, mechanics, and body shops across all 50 states.

100%
Money-Back Guarantee

Shop With Total Confidence

If it doesn't fit, we make it right. No gimmicks, no fine print.

120
Day Return Window

4× the Industry Standard

Most retailers stop at 30 days. We give you a full four months to install, test, and return for a 100% refund — return shipping on us.

NEW
Direct-Fit Replacement

Engineered To OEM Specs

Brand-new aftermarket parts from trusted suppliers — built to original-equipment specifications so they fit and function like the factory unit, at a fraction of the price.

What buyers are saying.

★★★★★ 4.9 1,451 verified reviews

Racing Partner Videos

×

Search by Vehicle

1
2
3
Added to cart · Part