Where is the bill of material number located on the axle?

It is stamped on the long axle tube, next to the date stamp; the diagram shows an example number 610320-1.

Where is the axle manufacturing date found?

The date is stamped on the long tube ahead of the bill of material number, in the format X XX XXX (callout 1).

Where is the axle model number shown?

The model number is cast into the differential housing; the diagram shows "30" (callout 3).

Where are the ratio tag and limited lubrication tag attached?

Both tags are attached at the differential cover: the ratio tag (callout 4) and the limited lubrication tag (callout 5).

Where is the axle identification tag located?

Per callout 2A, the axle identification tag is on the differential cover, shown in the end view of the housing.

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Jeep Dana 30 Axle Identification Diagram - Tags, Date & Bill of Material Location

Diagram showing axle housing identification tag locations including date, BOM, ratio and model number

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Diagram identifying axle housing tag locations: date, bill-of-material, ratio tag, model number and axle identification tag.

AI caption December 2010 · Photo 122 of 194

This document is a labeled line drawing showing where identification information is located on a beam-type drive axle assembly. The main illustration is a side view of the axle center section (differential housing) with its short tube and long tube, and a second illustration shows an end view of the differential cover. Numbered arrow callouts identify: (1) the manufacturing DATE stamp on the long axle tube, shown in the format "X XX XXX"; (2) the BILL OF MATERIAL number stamped on the tube, shown as "610320-1"; (2A) the AXLE IDENTIFICATION TAG located on the differential cover; (3) the MODEL NUMBER cast into the housing (the number "30" is shown); (4) the RATIO TAG; and (5) the LIMITED LUBRICATION TAG, both attached at the differential cover bolts. A reader can use this diagram to locate and decode the axle's build date, bill-of-material/part number, model number, gear ratio, and limited-slip (limited lubrication) identification on their axle. The "30" model number indicates the illustration depicts a Dana/Spicer Model 30 axle, consistent with a front axle used on Jeep vehicles. The document itself carries no explicit year or vehicle model text.

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Frequently asked questions

Where is the bill of material number located on the axle?: It is stamped on the long axle tube, next to the date stamp; the diagram shows an example number 610320-1.
Where is the axle manufacturing date found?: The date is stamped on the long tube ahead of the bill of material number, in the format X XX XXX (callout 1).
Where is the axle model number shown?: The model number is cast into the differential housing; the diagram shows "30" (callout 3).
Where are the ratio tag and limited lubrication tag attached?: Both tags are attached at the differential cover: the ratio tag (callout 4) and the limited lubrication tag (callout 5).
Where is the axle identification tag located?: Per callout 2A, the axle identification tag is on the differential cover, shown in the end view of the housing.