I have used a number of different boxes on these H3 builds. The Nissan Xterra box is very similar to the Toyota IFS box on this yellow truck. However, they both use a rear-pointing pitman arm which limits how far forward you can position the axle. If you want to stretch the wheelbase, I would recommend a Toyota FJ-60 or FJ-80 box. These older FJ boxes have the forward-pointing pitman arm that gives more room for the stretch.

@@4speedfunk ok thank you!. I would like to push the axle slightly forward but at the same time don’t want to give up handling characteristics or have to deal with faulty boxes… Do you think 40s would still be possible with this box or the Xterra box (just for extra capability in deep snow)? I have an 08 Alpha that I just had to replace the carrier in as it literally split in half so now I’m a bit more worried about the IFS as I was planning on going to 35s from these stock 31s. Both my inner CV axle joints were almost impossible to move though as I’m sure that helped contribute to the carrier failure..

@@northernidahooutdoors3748 I have built many SAS H3's and none of them turn as sharp as a stock IFS H3 (with rack & pinion). This is mostly due to the lower links of the three-link but, also due to tire rub on the fenders (just in front of the doors). Moving the axle forward helps the fender rub but, you will still be limited by the lower links. If you look at Jeep JK lifts...they often have bent lower links for this same reason. I haven't tried this yet but, it may be possible to put a bend in them. FAULTY BOXES! Yes! Thats why I like the Trail Gear Toyota IFS box. Its brand new and pre-ported.

@@4speedfunk thank you for the info!. I’ll definitely be in contact & ordering parts from you in the future. Hopefully you have no plans to quit doing what you do… Awesome work man!

Sorry...Issues with the email. I think I got them fixed. Try hitting the website again.

It works well with the Rancho. Brackets, swaybar links, shocks, brake lines, bags…runs around $900 and takes a day to do.

@@4speedfunk the harder part is that I'm in California..

@@4speedfunk Do the stock leaf springs need to be de-arched in this set up?

@@Macattack640 No…stock leafs are needed. Shoot me an email via the THORparts website, and I can get you all the stuff you need.

@@4speedfunk but do the stock leaves need to get de-arched with the SOA? What's the ride height end up in the rear with the SOA?

Around $8k-$11k for the parts. Depends on how crazy you get with the off-road goodies. You can reach me via the THORparts.com website.