dropping

[toeb]

I don't tow with blazer! but I do with my 94 1500 and I have the same notch on it with a 4-6 drop. I tow a 6.5 x12 trailer with a Polaris rzr and a 4 wheeler almost every weekend in the summer. I just bolted the notch in then welded the seams and boxed the back side of the frame. It's a little extra work but well worth it!!
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[Mkcustums]

Originally Posted by Mkcustums

Be very careful towing with those, a guy on here who I think does engineer work said they lower the strength of the frame at the notch by about 60%. (maybe worse) It was a huge decrease, I remember that!

In his write up he says "Bolt in - This model replicates the popular bolt in notch, it gains you about 3-1/2" additional clearance. It captures the bottom and the outside of the frame and is ¼” thick. The frame is not boxed. FEA reveals the frame is 80% weaker than stock."

Here is a write up he did- http://67-72chevytrucks.com/vboard/s...d.php?t=457037

[Liddy71]

Thanks MK thats some good infor I have a brother who is a welder by trade and I was going to have him do the back side don't think I will be towing with it just a cruiser

[Liddy71]

are the springs on the 2wd blazer the same as a pickup center to center

[tobiahr]

according to google results the length measured along the spring surface is the same for 1973-1987 pickups and blazers of the 2wd persuasion. The difference is the arch and weight capacity. Pickups have a 7 3/4 in arch with 1,290 capacity and Blazers have a 5 3/4 inch arch with 2,110 capacity. with a different arch the eye to eye measurement will be shorter for the pickup springs. also note the springs will compress more when using pickup truck springs on a blazer which will cause clearence issues under compression

[Mkcustums]

Here is a little more spring info, doesn't list the Blazer though.

http://littlekeylime.com/MrN/mrnimages/leaf_springs.png

[tobiahr]

the info i got was from the site that info was sorced from http://www.generalspringkc.com/index.php and one other http://www.sdtrucksprings.com/ . even that data isn't eye to eye. its measured along springs surface. the arch will change the eye to eye distance as well as compression.

[Liddy71]

I guess the easy way would be to do a flip kit on the back which will be about 5-6 in drop and use my 3 in drop spindles and use 1 -2 springs on the front . any Ideal on shocks. I have seen shock extender use on the rear. like I said earlier I have brand new set kyb shocks that came with it front and rear shocks