An friend just brought a rearend tag to me and I said, Ford.
However I dont recognize the numbers on it.
Top row is, S3771S R
Bottom row is, 4L10 75 9B05
I thought Ford started with a "W"
A Ford rearend, or not?
Feb 17, 2005
3 Replies
Well I found out its in a 99 ranger.
But what ratio?
Mach 1 wrote in news: snipped-for-privacy@4ax.com:
this denotes a 4.10 locking ratio KB
S377 Is the plant code R Denotes interchangeability affected internally
4L10 Axle ratio L Denotes Traction-Lok® 75 Ring gear diameter (inch) 9 Build year B Build month 05 Build dayJoin the Discussion
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