Could all you super knowledgeable HAMBers help me ID this rear end? It's ford 5x4.5 pattern the center section is stamped Ford and two other stamps are: A 'clock' if you will reading from 12 > clockwise 7 9 1 3 5 and 4J12. All is stamped in the center section which seems removable out the back with 10 bolts. Also... am I missing something or is this thing really 1.5 to 1 ratio???? It measures 50" backing plate to backing plate. Thanks...
That tag bolted to the cover will tell you the ratio.........starting at the hole for the attaching bolt, the left lower numbers will be the ratio......for example: 4 11 or if a limited slip 4 L 11, which would mean a 4.11 ratio and the 'L', if present would signify limited slip. That 4J12 code maybe what you will find on the tag. The upper row of letters/numbers on the tag should indicate ring gear size. I'm thinking it's 7.5, but may be an 8.8. Ranger pickup??? Ray
Does the Ranger pick up share the 5 x 4.5 bolt pattern? It came in the shoebox that I got and the guy had said 8" but I've heard a lot of guys say a lot of things
if you turn one wheel one revolution, and the pinion turns 1.5 turns, then it's about 3:1 ratio. You need to turn one wheel two revolutions, or both wheels one revolution, to get the "real" ratio by counting pinion turns. Wire brush the tag, take a close up picture of it.
common rears with the cover are the 7.5 and 8.8", but in the olden days there were a couple others, I think a 6.5 and some oddball one used in full size cars in the late 60s-early 70s. If you can find an ford "engineering numbers" then it would nail it down...they start with a a 4 character code that specifies the decade, year, carline, and category of part. something like D4AP would be a 1974 full size car powertrain part.
Left hand bottom corner is probably 3.07 (ratio). Top left could be WER-T. Not a good rear for parts availability. Not many ratios or LSDs sold by aftermarkets.
looks like an 8.8 to me. have one in my truck and one in the parts pile for my willys project. tap on the rear cover. alot of the 8.8s had a composite inspection cover.
heres what I found on the tag..... WER T 4 K D 07 8 7 570A I'm assuming thats its a 8.8 due to square sides - thanks nummie I'm also assumong that I am missing the 3 in front of the 07 in the bottom left corner- thanks johnnie Any thing else i should know? Thanks all -- Chilly
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