i have a 02 gmc sierra 1500 extended cab, 5speed manual tranny. the rear main transmission seal is worn out and i want to replace it myself. need acvice on removing seal

Asked by Pete Jan 11, 2016 at 05:56 PM about the 2002 GMC Sierra 1500 SL Extended Cab SB

Question type: Maintenance & Repair

i need some advice on proper way to remove bad seal and installing new one.  
i have done this once before on the same truck and it had minor leak in it
since so i dont want that to happen again. ive already had to have tranny
rebuilt but the machanic didnt replace rear main tranny seal. any help would
be greatly appreciated.

3 Answers

Lubricate the rubber seal to prevent damage to the lip and tap the seal in evenly. If the output shaft is worn where the seal meets the shaft then you will have more leaks.

You may want to invest in a seal puller as they don't cost much. What ever you do, don't scratch the output shaft.

Your Answer:

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 8,956 nationwide Sierra 1500 listings starting at $1,000.

Postal Code:

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,290
  • #2
    dragonflyoffshore
    Reputation
    11,440
  • #3
    John Saffrahn
    Reputation
    11,410
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
213 Great Deals out of 9,034 listings starting at $2,900
Used Ford F-150
343 Great Deals out of 12,723 listings starting at $599
Used GMC Sierra 2500HD
34 Great Deals out of 2,276 listings starting at $9,999
Used Toyota Tundra
33 Great Deals out of 988 listings starting at $9,240
Used Chevrolet Silverado 2500HD
34 Great Deals out of 1,782 listings starting at $1,000
Used Dodge RAM 1500
86 listings starting at $7,995
Used Toyota Tacoma
43 Great Deals out of 682 listings starting at $9,975
Used GMC Yukon
15 Great Deals out of 936 listings starting at $5,998
Used Chevrolet Tahoe
18 Great Deals out of 859 listings starting at $9,980
Used Ford F-250 Super Duty
34 Great Deals out of 719 listings starting at $4,290

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.