2008 GMC Sierra Transmission — Variants, Fitment & Tag Check

2 transmission variants are listed for the 2008 GMC Sierra. Compare attributes, check the tag on your unit, and find the one that fits.

More than one variant is listed. Please verify the tag on your unit before ordering. A VIN shows the part your vehicle was built with, but if it has been replaced, the tag on the unit in your vehicle may be different, and the tag on your unit is what determines fitment.

What tells the variants apart

The attributes below differ between variants. Find the matching value on your unit's tag or in your vehicle's records.

Variant T282002

6L80 Automatic Transmission Assembly

Illustrative photo of T282002 Illustrative photo of T282002 Illustrative photo of T282002 Illustrative photo of T282002
Illustrative images — not the exact unit listed

In our own completed orders for this vehicle and part, T282002 appeared in 3 of 27 orders (11.1%).

Average R&R8.5
Bell Housing1 Hole at 12 O'clock
Bell Housing IncludedYes
Cooler IncludedNo
Cooler Replacement RequiredNo
Extended WarrantyYes
Fluid TypePZL-LVMULTI
LockupYes
Pan Bolts18
Premium LaborYes
ProductVideoURLhttps://etereman.wistia.com/medias/nfarprq800
Radiator IncludedNo
Radiator Replacement RequiredNo
Tail HousingWithout
Torque Converter IncludedYes
Transmission Family6L80
Transmission Fluid10
Transmission Speeds6-Speed
Yoke StyleNo Yoke

Interchange numbers (vendor)

OEM cross-references

None listed.

Hollander numbers

Variant T282002B

6L80 Automatic Transmission Assembly w/ Billet Torque Converter

Illustrative photo of T282002B Illustrative photo of T282002B
Illustrative images — not the exact unit listed
Average R&R8.7
Bell Housing1 Hole at 12 O'clock
Bell Housing IncludedYes
Cooler IncludedNo
Cooler Replacement RequiredNo
Extended WarrantyYes
Fluid TypePZL-LVMULTI
LockupYes
Pan Bolts18
Premium LaborYes
ProductVideoURLhttps://etereman.wistia.com/medias/nfarprq800
Radiator IncludedNo
Radiator Replacement RequiredNo
Tail HousingWithout
Torque Converter IncludedYes
Transmission Family6L80
Transmission Fluid10
Transmission Speeds6-Speed
Yoke StyleNo Yoke

Interchange numbers (vendor)

OEM cross-references

None listed.

Hollander numbers

None listed.

Frequently asked questions

What transmission fits a 2008 GMC Sierra?

2 variants are listed: T282002, T282002B. Which one fits depends on the tag on your unit.

How do I know which variant fits my 2008 GMC Sierra?

Check the tag on your unit before ordering. Please verify the tag on your unit before ordering. A VIN shows the part your vehicle was built with, but if it has been replaced, the tag on the unit in your vehicle may be different, and the tag on your unit is what determines fitment.

What tells the transmission variants apart for a 2008 GMC Sierra?

The attributes that differ between variants are: Average R&R.

Which variant shows up most in your own orders for a 2008 GMC Sierra?

T282002 appeared in 3 of 27 completed orders (11.1%).

Fitment data from the ETE catalog, our own completed orders, and Hollander interchange data. Numbering systems are listed separately and never merged. When a record lists more than one variant, the tag on your unit is the final word on fitment.