Newbie with rear end question

[Areohbe]

Hey guys'
I wanted to know if you could tell me what rear end this is? It is on a 1970 C20 that I just bought. I want to lower the rear end and need to know what type of shackles or flip kit to use. I have already takin out 2 leafs on each side but want to go lower. Thanks

[Areohbe]

here is how it sits for now with 2 leafs out from each side.

[RUSHNBOBO]

It's a GM 14 bolt;

--If you want to go a little lower, try extended shackles; gives 1-2 inches approx....and maybe a couple more leafs (bottom)

--If you want to go way low ....flip it

--Also aftermarket lowered leaf kits...usually ride better...may lose load capacity

--Relocated hangers

[Areohbe]

Thanks Rushnbobo...
Any suggestions on where to get a flip kit? And are they very hard to install? The leafs are 2.25" wide what shackles would fit this application.
Also if I wanted to drop the front I assume it would be best to buy lowering coils vs cutting. I am not worried about hauling as this is just going to be a fun truck... Can I get away with the C10 coils as I have seen mentioned in the forum?
So many questions..... I am stoked on this site it is gonna be a life saver...

[RUSHNBOBO]

Originally Posted by Areohbe

Thanks Rushnbobo...
Any suggestions on where to get a flip kit? And are they very hard to install? The leafs are 2.25" wide what shackles would fit this application.
Also if I wanted to drop the front I assume it would be best to buy lowering coils vs cutting. I am not worried about hauling as this is just going to be a fun truck... Can I get away with the C10 coils as I have seen mentioned in the forum?
So many questions..... I am stoked on this site it is gonna be a life saver...

Avoid cutting the coils unless your looking for the cheapest way possible !!...ride quality will be stiffer, due to increased spring rate....and amount of drop is hit or miss, plus new drop coils are cheap !!

Here's just a few parts I found from CPP:

6372SHK-RE....1-2 inch drop shackles (also drop leaves avail; 2, 3, 4, 5, inch)

FCS6102-3......3 inch drop front coils springs ( these are the ones I run on my dually) all coils are interchangeable....C/10 20 30....if load rating is not relevant.

There is also 1 and 2 inch drop coils as well as drop spindles...for your application.

Below is the link for CPP.....couldn't find a direct bolt in flip kit for 67-72 2wd leaf app. .....someone else may know, if not you can build your own if you have access to a welder....just need perches welded on opposite side of housing

http://www.classicperform.com/6092chevtrk.htm#13

MANY other sites avail if you need more help

Also when lowering the rear over 3-4 inches ...you must adjust the pinion angle with shims or it will vibrate like a mutha, as well as wear out u joints

2-3 degree "down" angle is ideal...don't want it at zero angle either...it will flat spot needle bearings in u joints