sas question
 

I was wondering if I do the dana30 swap do I need to also swap my back axle I found a front for only 100.

yes, different bolt pattern. ul need to go to a ford 8.8 or something with a 5 on 4.5 bolt pattern. your blazer is a 5 on 4.75 bolt pattern. or u can get wheel adapters that bolt onto your drums but then u have to find wheels to fit. or u can just put the dana30 in and have 2 different wheels.....lol

.
 

Buy Crager soft 8's in two different lug patterns! Truck yeah!

You can also make S10 wheel bearings work on the D30 axle to keep the 5x4.75 bolt pattern and ABS

Well I was just wondering if u could get a axle with same bolt patterns so I don't need to swap the rear every SAS swap I seen they swap the rear I'm just trying to spend less on it.

So what axle would have the same lug patterns unless I mix match for awhile.

there are no axles with the blazer bolt pattern, the only options are wheel adapters or using the s10 unit bearings

Alright I'll look into that don't feel like dropping more money into it doing the rear if there is no need to. I want to try and do it the cheapest I can. Also has any one made the font drop bracket bolt on and then also welded after bolting it on to make it more sturdy?

This was just a thought from the looks yes I'll be able to get bigger tires but my axle will still be down low might raise it a little. I can't really see a gain in it I got stuck on my axle the last time because I sunk in clay so I can't see the SAS helping, Thanks for all the replies might just get a body lift then late on just get a older truck already with a solid axle. ;)