What size axle tube fits the MB4126 leaf spring perches?
The MB4126 is designed specifically for 3.5" diameter axle tubes. The formed perch profile is intended to fit that axle tube diameter for weld-on installation.
Why do these leaf spring perches have three center pin holes?
The three mounting holes allow builders to adjust axle position relative to the leaf spring. The center hole provides the standard mounting position, while the additional holes allow the axle to be moved 1" forward or 1" rearward. This can be useful when adjusting wheelbase or tire position during an axle swap.
How does a 7" leaf spring perch help with axle wrap?
A longer spring perch provides an extended contact area between the axle housing and leaf spring. The 7" length helps resist the tendency of the axle housing to rotate under torque, commonly called axle wrap. It does not eliminate axle wrap in every suspension configuration.
Are the MB4126 leaf spring perches sold individually or as a pair?
The MB4126 is sold as a pair. Each kit includes two spring perches for installation on one axle.
Can these spring perches be used on vehicles other than Jeeps?
Yes. The MB4126 is a universal fabrication component rather than a vehicle-specific part. It can be used in compatible leaf spring suspension applications with 3.5" diameter axle tubes. Builders should verify spring width, mounting geometry, and suspension clearance before installation.
