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1 ton steering


Full Member
Apr 9, 2006
hey yall
Im in the middle of planning a SAS for my 02 Avy 1500. And i want to replace my 1/2 ton steering box,
preferably for a one ton steering box to handle the bigger tires and abuse better.
Does anyone know if this is a direct swap?

I know on the 1/2 ton Chevy trucks it is but, im not sure about the Avalanche.
I can't answer your question but I will tell ya a couple of things.

Avalanches are Suburban based and only come 1/2 + 3/4 ton.
One ton are Silverados that uses a different suspensions some parts work in the AVY some will not.

I would suggest you do a trial and error methods maybe find 1 in a junkyard (cheap) and see what the differences are.

Hope this helps.
Are people with lifts and big tires blowing out steering boxes  ???
I know the 1500 Avy and the 2500 Avy are different animals frame and rear suspension wise.
Id settle for a 3/4 ton steering box out of the 2500 Avy but, id prefer a one ton.

Like I said I know its possible on the Silverados, and i figured if im changing the steering box and the pitman arm I might as well upgrade to something more beefy. Guess ill just have to find out the old fashioned way.

I cant speak for others as far as blowing out steering boxes. Mine had a little play in it when I bought it. Plus 2 years after being lifted the bigger wheels and tires havnt been too kind to it.
hate to burst any bubbles BUT,1/2 ton-1 ton silverado's as well as av's both 1/2 and 3/4 ton ALL use the same steering box!!!!!
There is a after market DOT approved Hydraulic system out  now.
I will see if I can find information (was in one of the 4X4 Mags) was in 1or 2 months ago in the new products
ill be adding hydro assist when its finished for sure. Its street legal and I dont have to worry about blowing a line or something and not having any steering at all. Full hydro systems have come along way. So I'm not saying they are dangerous or unreliable, but id rather not take the chance.
No but it will rip the idler arm bracket from the frame or bend the bracket, don't ask how I know, but it is a weak spot in gm's
yea, i had a tie rod sleeve seize up on me. so i ordered a new one from FTS, and they sent me an idler arm brace 4 free lol
at first i didnt even know what it was until i looked at the reciept.