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

100,475

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
    430
  • #2
    Js08016
    Reputation
    170
  • #2
    Clayton Cameron
    Reputation
    170
View All

Related Models For Sale

Used Ford F-150
2,320 Great Deals out of 184,575 listings starting at $699
Used Ford Mustang
727 Great Deals out of 38,098 listings starting at $895
Used Jeep Wrangler
313 Great Deals out of 16,300 listings starting at $2,500
Used Chevrolet Blazer
1,056 listings starting at $950
Used Ford F-250
468 listings starting at $6,694
Used Ford Ranger
169 Great Deals out of 5,561 listings starting at $1,499
Used Toyota 4Runner
289 Great Deals out of 22,120 listings starting at $1,750
Used Chevrolet Camaro
415 Great Deals out of 30,919 listings starting at $3,550

Used Cars For Sale

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.