When we ran a full service chassis fab/turn-key hot rod shop a number of years ago, it was always useful to have threaded things around to weld into the frame for some kind of mount, etc.
Here’s a list of all our threaded things for your reference:
3”, PR" style="width:100%;" width="1500" height="1099" loading="eager" class="details-gallery__picture details-gallery__photoswipe-index-0" itemprop="image" decoding="async" loading="lazy">Axle Bracket Adapter, 2-5/8" -> 3”, PR
Product Details
Brand: Welder Series
Country/Region of Manufacture: Canada
Thickness: 3/16"
Diameter: 3" O.D x 2-5/8" I.D.
Axle bracket adapters for using 3" axle brackets on 2-5/8" axle tubes. This adapter wraps around half of the axle tube. 4" long. Sold as a pair.
Triangulated Axle Bracket Kit, PR
C$112.00
Triangulated Axle Bracket Kit, PR
For 3" or 3-1/4" axle tube