Author Topic: Need some help or suggestions  (Read 29043 times)

Offline Captkaos

  • OWNER and Administrator
  • Administrator
  • Senior Member
  • *****
  • Posts: 18461
    • http://www.73-87chevytrucks.com
Re: Need some help or suggestions
« Reply #15 on: April 07, 2008, 12:10:30 pm »
What size tires are those?  It looks fairly normal to me with 3" drop coils and a Diesel engine.
I would check body bushings on the "low" side...

Offline dueprocess

  • Newbie
  • Posts: 52
  • My 8yr old's tonka toy!
Re: Need some help or suggestions
« Reply #16 on: April 07, 2008, 12:21:04 pm »
What size tires are those?  It looks fairly normal to me with 3" drop coils and a Diesel engine.
I would check body bushings on the "low" side...
the tires are a 275/60/15 Toyo Proxes(came on the truck), so i should be sitting on the bump stops with 3" drop coils and a diesel engine. If i would have know that i would have only got 2" coils!!!!! hahahaha
I have to admit, with the tire/rim combo i am surprised i have no LCA rubbing, i backed it out the garage and turned it around to be able to get to the back of it and no rubbing marks or anything!!!!!!
1978 Chevy K10 / 454bbc / Dana 44 with chromoly axles / 6in susp & 3in BL / 38.50x15 Boggers(rims 15x14)!

Offline Captkaos

  • OWNER and Administrator
  • Administrator
  • Senior Member
  • *****
  • Posts: 18461
    • http://www.73-87chevytrucks.com
Re: Need some help or suggestions
« Reply #17 on: April 07, 2008, 12:26:36 pm »
It should be close (it looks like about 3.5" based on the pictures) 4" will sit on the stock bumpstops.

 Did you measure before and after to see how much you got out of the springs?
The bad part is the springs will probably settle some so it is going to get lower.

Offline dueprocess

  • Newbie
  • Posts: 52
  • My 8yr old's tonka toy!
Re: Need some help or suggestions
« Reply #18 on: April 07, 2008, 02:13:15 pm »
yea, i measured and would have needed 4 1/4 to sit on bump stops, hence why i thought i would be safe with the 3" coils. Now i am sitting on bump stops no dout - guess she really can't get any lower in present condition huh..hahahahaha

So with my coils from bell tech(99 Yukon ~ spindle's,coils and LCA) they sent me 1" coil spacers, do they have these for my 83? Can i use the bell tech 1" spacers on the 83? I did not need them on my truck by anymeans!
1978 Chevy K10 / 454bbc / Dana 44 with chromoly axles / 6in susp & 3in BL / 38.50x15 Boggers(rims 15x14)!

Offline dueprocess

  • Newbie
  • Posts: 52
  • My 8yr old's tonka toy!
Re: Need some help or suggestions
« Reply #19 on: April 07, 2008, 05:25:43 pm »
Thanks for all you guys help!

I called sumit today and talked to them, they called JDM and corrected the mistake of sending me springs that collapse under the weight of a 6.2L Diesel.... I am getting a full refund from summit for the coils even though they are used!
I did find out by a guy coming over to look and help me out, i do have a small bend in the frame. He owns Adams body and frame in Destin. My drivers side front wheel is pushed back 1" and the bow in the frame is right about under the drivers seat.. Once i get the old springs back in i will get her to the frame shop, drop her off for a day and then back here to install the 3" drop spindles,LCA's and bag components!!!! You guys were awesome and look forward to more interaction with you guys and reading more on the forum!!

Big Buck
1978 Chevy K10 / 454bbc / Dana 44 with chromoly axles / 6in susp & 3in BL / 38.50x15 Boggers(rims 15x14)!

Offline Captkaos

  • OWNER and Administrator
  • Administrator
  • Senior Member
  • *****
  • Posts: 18461
    • http://www.73-87chevytrucks.com
Re: Need some help or suggestions
« Reply #20 on: April 07, 2008, 05:51:35 pm »
I see you figured it out, but as far as the spacer, I am not sure how it operates but the 73-87 springs aren't the same as 88-98 springs in spacing and diameter.

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 19180
Re: Need some help or suggestions
« Reply #21 on: April 07, 2008, 06:16:21 pm »
You should replace all of your springs FIRST, then take it in for frame/alignment.
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline HAULIN IT

  • Senior Member
  • ****
  • Posts: 1542
Re: Need some help or suggestions
« Reply #22 on: April 07, 2008, 08:47:14 pm »
Due, Can you post a picture of your frame? The area I believe you are talking about, under the cab on the Left side belongs there on many early-mid '80's 2wd shortbed trucks. The bottom lip of the frame is rolled down like a gorilla with a big pair of Channel locks grabbed it & pulled down right under the driver's seat step-up area where the frame starts to rise. I'm not saying "your frame isn't bent" just that that area is suspicious looking on many mid '80's shortbeds, but was there from the factory. Now back to your lean, Is the front fender lip, side to side off more than the bed side lip, side to side, or is the back worse? The end that is off more is where you should start looking for the problem. The fact that you had a lean with the old front springs & the new ones (regardless that they are wrong) makes me think you need to look in the rear some more. The idea that the bumpstop was touching on the Left, but not on the Right means that the suspension is different side to side & likely not the frame itself. How much different is there from the frame (or bumpstop) to the axle on the rear? I think you will find that once the correct springs are installed in the front, your truck is still going to lean to the Left. When the truck is on the frame machine, the suspension is "out of the picture" giving you the true story. Lorne

Offline 78 BIG TEN

  • Newbie
  • Posts: 73
Re: Need some help or suggestions
« Reply #23 on: April 07, 2008, 10:44:47 pm »
I love the way that front end sits only with coils. By chance do you have a link for those coils. Thanks.
78 Big Ten, 350/350
Flowmaster..Edelbrock..MSD..Equus Gauges..Pioneer
93 Bonneville SSE
Flowmaster..CAI..HiFonics..Panasonic..Memphis 12's
00 Elantra
93 Cadillac Deville FOR SALE

Offline ccz145a

  • Senior Member
  • ****
  • Posts: 1393
Re: Need some help or suggestions
« Reply #24 on: April 08, 2008, 08:44:28 am »
While your thinking, You could swap the coils and see if the lean follows and eliminate that variable.
1975 C10 Silverado LWB, 454CID, TH400, 10bolt 3.42
11MPG Downhill w/tailwind (but there ain't no hills here)

Offline VileZambonie

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 19180
Re: Need some help or suggestions
« Reply #25 on: April 08, 2008, 08:50:19 am »
The lean is probably due to a fatigued leaf spring. Measure the distance from the frame to the top of the leaf spring in the back. Compare L to R
,                           ___ 
                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline dueprocess

  • Newbie
  • Posts: 52
  • My 8yr old's tonka toy!
Re: Need some help or suggestions
« Reply #26 on: April 08, 2008, 04:03:41 pm »
I love the way that front end sits only with coils. By chance do you have a link for those coils. Thanks.
  Here ya go!!!!   http://store.summitracing.com/partdetail.asp?autofilter=1&part=DJM%2DCS2353%2D3&N=700+4294908216+4294908213+4294925044+4294925130+4294839061+400323+115&autoview=sku

The lean is probably due to a fatigued leaf spring. Measure the distance from the frame to the top of the leaf spring in the back. Compare L to R
  10 1/8"(Drivers)  10 3/8"(passenger)

Due, Can you post a picture of your frame? The area I believe you are talking about, under the cab on the Left side belongs there on many early-mid '80's 2wd shortbed trucks. The bottom lip of the frame is rolled down like a gorilla with a big pair of Channel locks grabbed it & pulled down right under the driver's seat step-up area where the frame starts to rise. I'm not saying "your frame isn't bent" just that that area is suspicious looking on many mid '80's shortbeds, but was there from the factory. Now back to your lean, Is the front fender lip, side to side off more than the bed side lip, side to side, or is the back worse? The end that is off more is where you should start looking for the problem. The fact that you had a lean with the old front springs & the new ones (regardless that they are wrong) makes me think you need to look in the rear some more. The idea that the bumpstop was touching on the Left, but not on the Right means that the suspension is different side to side & likely not the frame itself. How much different is there from the frame (or bumpstop) to the axle on the rear? I think you will find that once the correct springs are installed in the front, your truck is still going to lean to the Left. When the truck is on the frame machine, the suspension is "out of the picture" giving you the true story. Lorne


It should be close (it looks like about 3.5" based on the pictures) 4" will sit on the stock bumpstops.

 Did you measure before and after to see how much you got out of the springs?
The bad part is the springs will probably settle some so it is going to get lower.
Stock springs




DJM 3" Drop Coils





Here are the measurments i took(Every measurement took from item to the ground ~ in garage where level and smooth)... If i need a different measurement let me know and i will get it on here!!!!!!!

1.) Very back end of frame - Driver(Left) 23 3/4"  Pass(Right) 23 3/4"
2.) Rear bottom Leaf spring - L 13 3/4"  R 14"
3.) Rear Fenders - L 33 1/8"  R 34 1/2"
4.) Front Fenders - L 30 5/8" 32 1/4"
5.) Center of LCA bolt - L 10 3/8"  R 10 5/8"
6.) Front Cab Body mounts - L 11 3/4  R 12 1/4

If i can do anything else recommended just let me know!!!!! You are a great bunch of guys and really can't say enough how much i thank you guys for all the input!!!!! 
1978 Chevy K10 / 454bbc / Dana 44 with chromoly axles / 6in susp & 3in BL / 38.50x15 Boggers(rims 15x14)!

Offline HAULIN IT

  • Senior Member
  • ****
  • Posts: 1542
Re: Need some help or suggestions
« Reply #27 on: April 08, 2008, 05:18:27 pm »
Due...d, Yes, that is the spot on the frame I'm talking about, as dumb as it looks, it was there the day the truck was built. What is the round object above the jack stand? Is that one of those dumb weights that you see hanging on various parts of a vehicle? I don't think I've ever seen one there, if that's what it is. By your measurements, the problem is in the front. As I said earlier, the area that is the fartherest off in measurement is where the problem is & the rest (less variation at the rear wheelwells) is just the result. I would still like to know the distance from the frame to axle in the rear. Boy! The back is REALLY high, higher than even a stock 4x4 it looks like. I realize the back goes up as the front came down, but WOW! Do the rear springs look new? Even a flip kit would really not be enough I wouldn't think. That's a serious lean, you gotta find what's wrong, I don't feel a spring shim in the case is the right thing to do. Lorne   

Offline dueprocess

  • Newbie
  • Posts: 52
  • My 8yr old's tonka toy!
Re: Need some help or suggestions
« Reply #28 on: April 08, 2008, 05:37:53 pm »
Due...d, Yes, that is the spot on the frame I'm talking about, as dumb as it looks, it was there the day the truck was built. What is the round object above the jack stand? Is that one of those dumb weights that you see hanging on various parts of a vehicle? I don't think I've ever seen one there, if that's what it is. By your measurements, the problem is in the front. As I said earlier, the area that is the fartherest off in measurement is where the problem is & the rest (less variation at the rear wheelwells) is just the result. I would still like to know the distance from the frame to axle in the rear. Boy! The back is REALLY high, higher than even a stock 4x4 it looks like. I realize the back goes up as the front came down, but WOW! Do the rear springs look new? Even a flip kit would really not be enough I wouldn't think. That's a serious lean, you gotta find what's wrong, I don't feel a spring shim in the case is the right thing to do. Lorne   
Cool, i am happy to hear the frame is suppose to be like that there!!!!! From what i am told the round thing is found on all Diesel's due to the vibration from the engine. Guess it is a dampener for the drive shaft or something to that nature... I really don't know!
1978 Chevy K10 / 454bbc / Dana 44 with chromoly axles / 6in susp & 3in BL / 38.50x15 Boggers(rims 15x14)!

Offline Captkaos

  • OWNER and Administrator
  • Administrator
  • Senior Member
  • *****
  • Posts: 18461
    • http://www.73-87chevytrucks.com
Re: Need some help or suggestions
« Reply #29 on: April 08, 2008, 06:02:32 pm »
The spot on the frame where the bend is located is where the catalytic converter went.  All trucks had this...

Keep in mine NO vehicle ever made will be level at all for corners.  spring steel will settle at different rates and we are talking about a 25 year old truck.....

4.) Front Fenders - L 30 5/8" 32 1/4"  = 1-5/8" differece
5.) Center of LCA bolt - L 10 3/8"  R 10 5/8" = 1/4" difference
6.) Front Cab Body mounts - L 11 3/4  R 12 1/4 = 1/2" difference

The problem is in the front.   Keep in mind none of this really means much (other than finding the source) until you get the frame straight.  If it has been hit, everything will be off.  I would check the body bushings condition also...