Swapping front differentials

Asked by Oct 05, 2013 at 08:39 PM about the 1987 Ford Bronco STD 4WD

Question type: Maintenance & Repair

I have a 1987 Ford Bronco with an inline 6 300 & manual transmission.  I bought a parts truck that is a 1987 Bronco with a 351W and automatic transmission.  Can I swap them out or is the gear ratio so different that it won't work?

1 Answer

107,295

As far as the physical difference there isn't any, but you need to find the ident tag that should be between 2 bolts on the front pumpkin it should have the ratio stamped in it, both diffs will have this tag, it will read like 3.53 or 3.04 something like that so the ratios have to match. sometimes Automatic trans units will have a higher ratio so you really need to check unless you want to change out the rear end too.

Your Answer

Ford Bronco Experts

  • #1
    tennisshoes
    Reputation
    450
  • #2
    Js08016
    Reputation
    180
  • #3
    Clayton Cameron
    Reputation
    170
View All

Related Models For Sale

Used Ford F-150
3,159 Great Deals out of 223,305 listings starting at $1,000
Used Ford Mustang
413 Great Deals out of 41,516 listings starting at $1,488
Used Chevrolet Blazer
3 Great Deals out of 875 listings starting at $950
Used Jeep Wrangler
474 Great Deals out of 19,754 listings starting at $1,199
Used Ford Bronco II
17 listings
Used Ford Ranger
148 Great Deals out of 5,258 listings starting at $999
Used Ford F-100
164 listings
Used Ford F-250
422 listings starting at $2,900
Used Toyota 4Runner
309 Great Deals out of 26,921 listings starting at $1,900

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.