T-Rex vs Long Arms

Can someone explain the differences and in what application they make sense. Thanks!

T-Rex are excellent for any eb.
Any eb.

Long arms are great for wicked articulation.
I absolutely love my Duff Long Arms.

The long arms provide a significant improvement for a trail rig/rock crawler. Better flex with the hiem joints, better caster and less front end angle change when the front drops - easier on the front driveshaft u-joints - and better clearance for bigger tires to improve turning radius (over straight arms). Best on a Bronco used mostly for trail but still retains good road manners.

The benefits of the T-Rex arms are a little more subjective. They have some caster built in and have the same bend for clearing bigger tires and preserving turning radius. They use the same bushing and frame connections as stock so no change/benefit there. But they look really cool! These are good for more of a street and occasional trail use Bronco where you don't need as much flex. Another benefit is you do not have to modify the frame for T-Rex arms - they are a straight bolt-on mod.

I have the Duff long arms on my crawler and the T-Rex arms on my 78 mostly street Bronco. Both arms are highly recommended!

Thank you, that helps!

Here is a comparison I did of the benefits of TRex vs stock radius arms. They are a significant improvement over stock. We love them.

http://classicbroncos.com/forums/showthread.php?t=288350