Re: 68 GMC 4x4 Suburban build up
 

1st What year is the flat bed?
2nd Why can you not run the H1 wheels? I was sure that all 8 lug patterns were the same. Yea, the hub size varies some, but not much. That is until you get to the late 90's Fords. Looking at VTBlazer's H1 wheels, I like them a lot.

Re: 68 GMC 4x4 Suburban build up
 

its an 87

They bolt up but the backspacing isn't right with SRW hubs. Thats why people use dually axles it evens out. the 87 is a cab/chassis truck so the rear is narrower I think. You need an axle out of a dually with a bed than srw hubs/axles? on the dana70hd makes it match the dana 60 DRW perfectly. That's what I've read at least. Or you can buy recentered H1 wheels from some people.

Re: 68 GMC 4x4 Suburban build up
 

Ah! The dreaded backspacing issue. I see now.

Re: 68 GMC 4x4 Suburban build up
 

I need to buy a K30 and get the dana 60 it seams like all the other parts are worth the extr$$$ vs just buying a $800 dana 60?! I missed a complete running driving SRW K30 for $1200, darn it!? I'll find one!

Re: 68 GMC 4x4 Suburban build up
 

Yea same boat here. It will end up costing less buying a whole truck.

Thing is I don't think me or you really NEED a dana 60 :) Nice knowing something is stout though.

Re: 68 GMC 4x4 Suburban build up
 

OK! Little bit of a break but got some work done, took the 52" rear springs apart painted, new poly bushings and teflon spring pads in um.


[img]http://photos-h.ak.fbcdn.net/hphotos-ak-snc1/hs230.snc1
/7731_126030054591_677669591_2400943_581167_n.jpg[/img]

The leaf spring bushing sleeves where not fun to remove.....
http://photos-a.ak.fbcdn.net/hphotos..._2051139_n.jpg
52" front springs installed, looks like they will net some good lift!
http://photos-b.ak.fbcdn.net/hphotos...4632412_n.jpg]
Front view
http://photos-c.ak.fbcdn.net/hphotos..._2143939_n.jpg

BFH was needed to get the bushings into the front spring hangers tight fit!. Used the 2nd to last hole, not sure if this is best or why, just seemed like the right place.

Now too pulling my dana 60 out and throwing it under there......

Re: 68 GMC 4x4 Suburban build up
 

Man, I hope my 52" springs don't give me too much lift?! I was hoping for 3-4" max, I may need to shorten my shackle brackets?! Looking good, can't wait to see the 60!! I have a line on a K30 SRW w/454/th400! I am trying to wheel and deal (trade) I have a lot of stuff he wants and I want his TRUCK!

Re: 68 GMC 4x4 Suburban build up
 

You should be alright, everyone has said it gives about 4-5" I'd just make sure to get a 1/2 ton spring pack and remove the overload.

Re: 68 GMC 4x4 Suburban build up
 

any updates on this build?

Re: 68 GMC 4x4 Suburban build up
 

Wow when you post progress and there is a date it makes you realize how much you been slacking! haha

FINALLY pulled out the D60 from my 87 dually

http://photos-b.ak.fbcdn.net/hphotos..._6628611_n.jpg

http://photos-h.ak.fbcdn.net/hphotos..._7486825_n.jpg

Going to put it under the burb next week. Got stuff to do this weekend.

Re: 68 GMC 4x4 Suburban build up
 

Got the Dana 60 in. Well shocks and steering, brakes, driveline and it still has dually hubs but I just wanted it off jackstands

http://photos-c.ak.fbcdn.net/hphotos..._5488815_n.jpg

http://photos-g.ak.fbcdn.net/hphotos..._4509456_n.jpg

http://photos-e.ak.fbcdn.net/hphotos...8_685019_n.jpg


Damn that little bit narrower that the 67-72s are makes this a *****. Plus the weight of the dana 60. Just stayed calm. Pry bar here, mini sledge there, a kick or two for good measure and I got everything lined up. Pretty happy right now. Trying not to think to far ahead for everything else that still needs to be done!

Re: 68 GMC 4x4 Suburban build up
 

your making good progress keep it up

Re: 68 GMC 4x4 Suburban build up
 

thats going to be a great rig once its done.

Re: 68 GMC 4x4 Suburban build up
 

Thanks guys I am looking forward to when it is done!

I am not looking forward to adding p/s to the flat 68 frame. If anyone has tips on the best way to dimple the frame I would appreciate it.

Re: 68 GMC 4x4 Suburban build up
 

Been prepping the 87 1 ton to tear apart and pull the drivetrain and scrap the thing so I can get some more room.

Found some well used 315/75/16 (35) BFG Mud Terrains for 100 bucks so at least it will have the right size tires while its sitting around.

http://hphotos-snc3.fbcdn.net/hs082....9_624428_n.jpg Going to have them mounted on some 16x8 steel rims off my old 95 gmc.

Also found this steering wheel in the dirt amongst some of my stuff. I cleaned it up last night. Even matches my interior!

http://hphotos-snc3.fbcdn.net/hs102...._6964813_n.jpg

Really wanting to get some work done on it but its been raining a ton here!

Re: 68 GMC 4x4 Suburban build up
 

Well it is a 68 4x4 but it has the same problem as the 67 where the frame is not "stamped" for p/s I know you have to drill a few new holes and heat the frame up and pound it in to clear the p/s gearbox or add some sort of spacer. I don't think a spacer is a good idea with the frame cracks in these trucks. But My question is what of the orignal three holes do you go off of? I was able to get it in with the two bolts closest to the firewall top and bottom but it doesn't seem right. the bottom front bolt hangs below the frame and the angle doesn't seem right to the steering shaft. Took some pics to help you guys visualize it.

Some pics of successful installs would be appreciated!

http://hphotos-snc3.fbcdn.net/hs434...._1878285_n.jpg
http://photos-a.ak.fbcdn.net/hphotos..._6981237_n.jpg
http://hphotos-snc3.fbcdn.net/hs414....5_455261_n.jpg


Also pulled the hydroboost off the 87. For the people that have went to hydroboost how did they go about it? I know its not a direct bolt in from an 73-87 into a 67-72.

http://photos-c.ak.fbcdn.net/hphotos..._3555064_n.jpg

Re: 68 GMC 4x4 Suburban build up
 

check this out about hydroboost brakes
http://coloradok5.com/forums/showthread.php?t=130488

Re: 68 GMC 4x4 Suburban build up
 

Thanks for the link, very informative about hydroboost and further cements my desire to run it since I got all the parts already :)

Doesn't deal with retrofitting to a 67-72 though so still looking for that info if anyone has done it. I know some of you guys have!

Re: 68 GMC 4x4 Suburban build up
 

i wouldn't imagine it being that much harder...might have to do a little sheet metal fab...trial and error might be the way to go here. maybe i'll work on it when i get into my brake system. If i do, i'll post it up, but that won't be for a while.

Re: 68 GMC 4x4 Suburban build up
 

It should be fairly easy. I pulled the vacuum assist booster off today and will fab up the hydroboost later this week hopefully.

I also picked up these 16.5x8.25 slot mags today off craigslist for 150. Not going to use them right away but I always liked this style rim and they are hard to find in 8 lug so I jumped on the deal.

http://photos-e.ak.fbcdn.net/hphotos..._1056729_n.jpg

Re: 68 GMC 4x4 Suburban build up
 

nice find...I style need to find some 3/4 ton running gear for my 67...maybe i'll just go tons on my blazer and put the 3/4 tons on my 67 hrmmm...make sure to keep us posted on the hydroboost install...i'd like to see how you went about it

Re: 68 GMC 4x4 Suburban build up
 

FYI, 16.5 tires are getting hard to find. And expensive.

Re: 68 GMC 4x4 Suburban build up
 

not too bad...i'm runnign 16.5's on my 85 blazer and i have no problem getting the tires i use, but i'm runnin 40's so they're all gonna cost a little bit ;)

Re: 68 GMC 4x4 Suburban build up
 

I will cost me $750 to $1K before tax to get tires for mine. That is a little steep right now.

Re: 68 GMC 4x4 Suburban build up
 

what kind of tires...i still haven't decided on what tires to go with. I don't want anything like Swampers/Boggers...i'll save those for my blazer (wheelin rig) but i never liked the look of All Terrains either, so i'm looking for something in the middle like an Goodyear MT/R or BFG KM2 or something like that, but i want them to last a couple of years. I also want to buy American made too, so it's a little limited in my choices, but not by far. I'll be going with 35's on 15" rims

Re: 68 GMC 4x4 Suburban build up
 

$750 or so is for the Mastercraft (?)
$900 or so is for the BGF A/T and ProComp A/T
$1K or so is for the ProComp Mud
All D rated. All 33/16.5/12.50.

So for a moderate tire, it is a lot of coin for a guy out of work. I think I will search for used tires.

Re: 68 GMC 4x4 Suburban build up
 

Kalle,

Got a couple of questions for ya...hope you're up for the challenge.

First i was gonna address the rearend of your burb. Looks like the shackle flip-n-switch went in nice, i see in your pictures tho that the tires don't appear to be centered in the wheel well

http://photos-c.ak.fbcdn.net/hphotos..._1120972_n.jpg

and i'm not sure if this has anything to do with the shackle angle, but is it just me or does it look too straight up and down

http://photos-f.ak.fbcdn.net/hphotos..._7583536_n.jpg

Are the stock rear springs centered on your burb?

Also what do your 52's measure from center pin to bolt hole on each side? cause it looks like your front is centered nicely from the picture i saw with the d60 under it and tires.

Thanks,

Jack

Re: 68 GMC 4x4 Suburban build up
 

the shackle flip moves the tires forward about an inch I will address this when I swap the 14 bolt in the back. Kurt at DIY4X sold me a 1" block that has 3 different holes to move the axle back to line it up.

I'll measure my 52s I used in the front. They are stock springs off a 84ish gmc jimmy.

Re: 68 GMC 4x4 Suburban build up
 

I will probably get some used 37" goodyear military tires.

Re: 68 GMC 4x4 Suburban build up
 

hrmm...well while you're out there can you measure the rears as well...i need to know if our truck springs are centered, and if you still have the stock fronts can you get those...i'll buy you a drink if we cross paths ;)

Re: 68 GMC 4x4 Suburban build up
 

I will probably be near my truck tomorrow if so I'll measure everything up. It would be good info to just have anyways.

Re: 68 GMC 4x4 Suburban build up
 

thanks kalle..i appreciate it...here's a (really) crued drawing i whipped up in paint at work real quick of the dimensions i'm after for visual reference

i'm starting a thread about this for differant springs and such to do a spread sheet can you add the data to the thread in this link?
http://67-72chevytrucks.com/vboard/s...d.php?t=392551

Dimensions:
(Green) - D1:
(Blue) - D2:
(Brown) - D3:
(Purple) - D4:
(Yellow) - D5:
(Brown + Purple) - D6:

Front of the truck is on the left and this is for the front and rear

If you can get D1, D2, & D6 off the stock front i'd appreciate that too...

I'll do a write up on it and store it and post it for tech purposes and tag it that way future 67 & 68 owners can have this information

Thanks bro

Re: 68 GMC 4x4 Suburban build up
 

Any updates on the suspension? I'm liking the shackle flip and b52s.

Re: 68 GMC 4x4 Suburban build up
 

I just put the dana 60 dually front and a 14bolt dually rear under a 69 K/20 frame and built this truck.

The front end was a bolt in.


Attachment 608739

Re: 68 GMC 4x4 Suburban build up
 

Thanks man, no updates yet sorry! I've been in the process of moving and bought another car for a driver which turned into a bigger project than I thought! But I plan to get back on it soon!

Re: 68 GMC 4x4 Suburban build up
 

[QUOTE=70BLAZERX2;4082353]I just put the dana 60 dually front and a 14bolt dually rear under a 69 K/20 frame and built this truck.

The front end was a bolt in.



Nice truck man!

Re: 68 GMC 4x4 Suburban build up
 

Thank you..this ton dually 4x4 will hual 5,000 lbs of gravel and i even made it a dump bed..A few trips to tracker supply..and it was done..Now i need to paint it.


Nice burb...

Re: 68 GMC 4x4 Suburban build up
 

Glad to see you are still giving it heck!! I bought that K30 and pulled the drivetrain about a week or two ago and will get the axles next. Anyone want a nice rust free 81 K30, come get it or it'll get crushed!! I am concerned about the front lift? I am sceeerd I'll need a ladder to get in it?! Looking good!!

Re: 68 GMC 4x4 Suburban build up
 

This is the stock 1969 K/20 top main leaf,and stock 1987 K/30 front springs ,less the top one and look how high i am sitting..It looks great..


Attachment 608739[/QUOTE]

Re: 68 GMC 4x4 Suburban build up
 

any updates?