Fill the shock with damper oil. It's fine to over fill a bit here, you don't want insufficient oil before installing bladder. Move around piston slowly a couple times and you can see the air bubbles come up. Leave the whole thing upright for 5-10mins for additional bleed.

I like the losi oils because they are color coded like the Tamiyas. However they come in large bottles and and more available. A good replacement part is the Losi 8B bladder, the stock bladder tend to leak over time. The Losi Springs can also be used if you can't find the Tamiya springs.

Pull the piston to the very bottom and put the bladder on. You should get overflow here, if not you don't have enough oil put in. Clean up the spill and tighten caps. You should have at least half shock rebound at this point. (Rebound means how much the shaft will come up without spring.) You can further adjust rebound by where you place the piston when you do the bladder/cap bleed.

Attach shock boots, the fronts need to be shortened 5mm. Insert spring of choice and retainer. Attach the shocks to tower and a arms. The new one piece shocks mounts are now available as an upgrade.

We have now finished the chassis.