Stepside LSX Project from New Member

[C10LSX]

Whats up guys, The names Luke, new to the site and a little new to C10s, but I'm here.

I traded for this 69 GMC C15 a couple months ago. Its rolling and almost gutted. Came with some parts and a new American Wiring harness. Body is ok shape, no major major rust, just little on normal spots.
Ive bought a 5 lug disc brake conversion kit and put on already, along with new ball joints, tie rods, etc...

Plan is to get a cheap 5.3 or 6.0 carbed and cammed it, and a 4L80e. Simple budget LSX swap and cruiser. Im in college full time so its hard to do exactly what i want, and it might take some time. But hell I'm young!

Heres some pics and a little of the progress thats came along






















For the rear, i seen one guy on here use a 80s model 10 bolt rear for a 5 lug rear swap, Although he had trailing arms. I found a 8.5 10 bolt from a 1987 c10 for $50. My leaf spring perches and stock 87 both seem to be 42.5 inches, so im putting new seals and a gear in it and see if i can get it to bolt up to my leafs. its about a 1/2 inch wider on both sides but we'll see if it'll work. Guess we'll see what happens


The old 12 bolt





New 8.5 10 bolt



The man works in crocs....







So now I'm running brake lines and looking for some gears and so on.
I have one question, what should i do for brakes power. should i just buy a booster and master cylinder or make my current set up work somehow or find a used early 70s booster and MC or? I'm a little unfamiliar with brake swaps like this and ive tried researching on the cheapest way to do this. if anybody has any input I'd appreciate it lol
And if anybody has ever done this 73-87 rear end swap, post some pics and info lol or if anyone has any info on it I'd appreciate it also. so let the fun begin!