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4 inch lift questions
im looking at a 4in lift with springs, blocks and shocks, what all do i have to change or lengthen to do this, will i have to do anything with the drive shaft of the steering thanks for the help
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Re: 4 inch lift questions
Drop link is recommended... also i would recommend longer front brake lines. I have the stock ones on my project right now and I think I will end up switching to longer ones... besides that I think that's it.
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Re: 4 inch lift questions
What year vehicle are you asking about. You will find there are no definites.
With a 4 inch lift your driveshafts should be fine, but occasionally there is an issue. I did have an issue with the initial 4" lift I did on my 69 K20 - the front driveshaft was too short and I ended up having to add a Double Cardon Joint also. Depending on the year of vehicle usually a raised steering arm is recommended to get your steering back to near stock. If you dealing with a 69 or older, you will need an adjustable drop drag link as a raised steering arm isn't available for the axle used in a 69 or older truck. |
Re: 4 inch lift questions
Most kits give you a bracket for lowering your brake lines. New stainless are pretty nice to have.
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Re: 4 inch lift questions
Most lift kits include the steering arm you`d need and the steering absolutely needs addressed.I recommend a steering armover a drag link.The brake lines are a definate thing to address,too,but the relocation brackets that Mudder is talking about do the trick.I`ve never had to lengthen a ront driveshaft for 4".I suggest completing the lit and inspecting.When truckis sitting level the spline should have anout equal travel in and out.Take notice/mark the yoke/spline relation before and compare to after.
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Re: 4 inch lift questions
I would include a steering stabilizer.
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Re: 4 inch lift questions
it is a 72 thanks for all the good info im still looking into this to decide if this is the way i want to go yet or not thanks tony
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Re: 4 inch lift questions
Just get a steering arm and that is all you will need. I ran a 4" lift with just the arm for 4 years with no problems. Now if you are going to be flexing the suspension a lot I would do the front brake lines.
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Re: 4 inch lift questions
I've got the brake hose part numbers if you are doing a K20.
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Re: 4 inch lift questions
Skip the middle step and go ahead and get springs. The blocks stink. I bent both perches on my axle housing and had all sorts of wheel hop issues. Save a little more now, and only have to do job once.
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Re: 4 inch lift questions
I am doing the same thing with my 71 K10 I was looking at these:
http://www.ntwonline.com/67-72_GM_Su...cials_C782.cfm using the top one and not using the blocks but using this: http://www.offroaddesign.com/catalog/shacklekit.htm it is the best in my opinon if your going to use the truck. |
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Re: 4 inch lift questions
my '72 didnt need the longer brake lines but probly would under heavy articulation(sp?)
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Re: 4 inch lift questions
I just installed a 4" BDS lift kit,all spring.I got a new steering arm and ordered ss brake lines that are 4" longer.looks like the e-brake cables are a little tight,I may remove them
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Re: 4 inch lift questions
Not to hijack this thread but are real life opinions on the different brands of lift. I am more concered with ride. Which 4" all spring kit rides the best?
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Re: 4 inch lift questions
4 Attachment(s)
I did a junkyard lift on my son's that came out to about 4"....maybe more.
First.....I went to the junkyard and got some 52" springs off the back of an 80's Chevy truck. I also got the front hangers for the rear springs. Attachment 429421 Attachment 429422 Cost was about $50. This is the rear suspension that I started with. Attachment 429423 Attachment 429424 |
Re: 4 inch lift questions
5 Attachment(s)
I removed the rear hanger and drilled the holes out to 7/16". I then took the hangers that I got from the junkyard and mounted them.
I used grade 8 7/16" hardware to replace the rivets. Kind of makes a shackle flip. Attachment 429427 Attachment 429428 The above is not the shackle angle that I left it at. I wanted longer shackles....which they dont make for Chevy's cause of the reverse shackles, so I found a set of lowering shackles that worked just fine! :D Attachment 429429 Attachment 429430 I did have to get new brakelines. Attachment 429431 |
Re: 4 inch lift questions
5 Attachment(s)
For the front I used the 52" leafs from the rar of the junkyard Chevy.
THis gets a little tricky, because you have to move the front hangers, move the rear hangers and locate or build some 7-1/4" shackles. Old springs compared to new springs.... Attachment 429437 Original location... Attachment 429435 New location... Attachment 429436 You can see the old hole location of where the rear spring hanger used to be. I think I moved it forward a little more than an inch. Attachment 429438 Attachment 429444 |
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5 Attachment(s)
Then I had to make some shackles...
Attachment 429439 Attachment 429440 Attachment 429441 Attachment 429442 Attachment 429443 |
Re: 4 inch lift questions
Well done on the lift! That truck will ride smoother and articulate better than any lift spring possibly could. And it is done safely, which is key!
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Re: 4 inch lift questions
5 Attachment(s)
I cleaned the springs up and poainted them. Also cut the overloads.
Attachment 429445 Front required longer brake lines, too. Attachment 429446 Attachment 429447 Put in a Pro Comp 4" steerin hootus to correct the tie rod angle. Attachment 429448 Almost finished product. Attachment 429449 |
Re: 4 inch lift questions
I think you should do a more in depth build thread on that, I bet you'll have a lot of people trying to look fo this for possible future builds.
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