Re: [ihc] I need the rundown on the RA15 corportate axle

[bearbvd@xxxxxxxxxxxxxx (Greg Hermann)]

At 11:19 AM 10/28/03, tsm1@domain.elided wrote:
>> I would greatly appreciate some info on this type rear. Any help to any of
>> these questions would be great. First I need to know how to ID the ratio
>> without pulling the stump. Was there a tag somewhere on these or was it
>> stamped in somewhere on the housing? Next, I need to know what kind of
>> carriers were used in these. Was there a locker available or were they all
>> limited slip or open? Was this the heaviest axle IH offered in an 8 lug
>> pattern or was there a RA20 with 8 lugs? Finally, I have seen Rockwell
>> mentioned on ads for other 1 tons. Are these in actuality built by
>> Rockwell? TIA!
>
>I don't know about diff tags - I never looked for one on mine, but my
>Lineset indicated the 4.30 R&P - which was the tallest offered.  4.87,
>5.57, and 6.17 were also offered.

NEVER seen any part numbers for a 5.57 !!!
>
>I believe a Detroit NoSpin was available.  No limited slips.

Correct.
>
>It's a removable or "drop-out" third member.  Think "Big 9-inch".  Ring
>gear is 11", and riveted in place.

Closer to 12".
>
>Axle shafts are 1.5" diameter, 16-spline.

SEVENTEEN spline, Tom, 17 !!!
>
>I don't think Rockwell built 'em, but I bet a lot of people don't know
>that, and just assume "Rockwell" when they see the big drop-out axle

_I_H_ built them.

Greg
>
>-Tom