what auto trans is in my 78 with factory 400 motor?
25

Asked by babyluke Jul 25, 2007 at 03:38 PM about the 1978 Chevrolet Blazer

Question type: General

this k-5 bonanza has factory 400 motor, auto trans, 12 bolt rearend with 3.73 gears, trailer/tow,ac, etc. the owners manual says th350 or th400 for that year. any help very appreciated! thanks

1 Answer
83,745

littlehorn answered 16 years ago

Most likely the THM400 is the trans in your vehicle. This was used in most GM vehicles for many years. You can tell by looking at the shape and number of bolt holes in the transmission pan, and taking this info to an auto parts store to compare with their diagrams.

Mark helpful

Your Answer:

Related Questions

Shortcuts

Search Chevrolet Blazer Questions

CarGurus Experts

  • #1
    Andrew Olsen
    Reputation
    4,240
  • #2
    Rowefast
    Reputation
    3,540
  • #3
    yetilikesbeer
    Reputation
    2,410
View All

Find great deals from top-rated dealers

Search

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.