lascassas_camper
New member
I found this tag on my front axle, it has the following;
3.50 E1TA.E
610185-10
3.50 E1TA.E
610185-10
Axle Ratio
- Thread starter lascassas_camper
- Start date
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lascassas_camper
New member
3.50 E1TA.E 6
610185-10
610185-10
Broncobill78
New member
And the question is ? 
/emoticons/[email protected] 2x" width="20" height="20" />
The short answer is that the tag just indicates that the axle has an open differential and a 3.5 to 1 ratio as opposed to something like 3.08 or 4.11
As far as the specifics of the tag go, well, that's more complicated. The 610185-10 is the "bill of materials" and is the number you'd use to look it up in the Spicer/Dana catalog. I've attached a copy of the catalog if you or anyone else is interested in it (great diagrams and parts info for Dana/Spicer axles). Basically what it says is that the 610185-10 was installed in 81' & 82' Bronco's & F150's. It's a standard (open) differential w/3.50 gears. From the Bill of Materials # you determine which kits you need for the ring & pinion, case assembly, inner parts, etc.
The E1TA is a partial Ford part #, specifically it's a prefix used with truck drive train components (axles, drive shafts, transfer cases, etc). I *know* it's a truck prefix used for early 80's trucks. Just what years it was used during and what models it covers escapes me, maybe someone else knows or can shed more light on it.
X510_9.pdf
/emoticons/[email protected] 2x" width="20" height="20" />The short answer is that the tag just indicates that the axle has an open differential and a 3.5 to 1 ratio as opposed to something like 3.08 or 4.11
As far as the specifics of the tag go, well, that's more complicated. The 610185-10 is the "bill of materials" and is the number you'd use to look it up in the Spicer/Dana catalog. I've attached a copy of the catalog if you or anyone else is interested in it (great diagrams and parts info for Dana/Spicer axles). Basically what it says is that the 610185-10 was installed in 81' & 82' Bronco's & F150's. It's a standard (open) differential w/3.50 gears. From the Bill of Materials # you determine which kits you need for the ring & pinion, case assembly, inner parts, etc.
The E1TA is a partial Ford part #, specifically it's a prefix used with truck drive train components (axles, drive shafts, transfer cases, etc). I *know* it's a truck prefix used for early 80's trucks. Just what years it was used during and what models it covers escapes me, maybe someone else knows or can shed more light on it.
X510_9.pdf
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love_my_bronco
New member
hmm weird you said this is a front axel? 3.5 is most commonly in ford 9 inch... hmm i dont think the y made a front 3.5 ratio. is it ttb?
The 82 Bronco with a Ford 9" rear will have a Dana44 TTB with the same 3.50 gear ratio. To decipher the "E1TA" portrion, the "E" is the decade = 1980's, and the "1' is the year = 1981. BB78 did a good job of explaining the BOM number. JSM84
love_my_bronco
New member
oh ok. was it only for that year? the reason i ask is i have a 86 were as the front is again 3.54 i think it is but i have the 9in thats 3.5 so just throwing it out there.
The 86 with a 3.54 front ratio in the D44 TTB is matched for a Ford 8.8" rear axle with 3.55 gears.
