XJ6 & XJ12 Series I, II & III 1968-1992

Pabst Blue Ribbon meets Tea and Crumpets

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Old Mar 20, 2017 | 09:37 PM
  #101  
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Banzai some railroad tracks. They'll settle in. Or put the old ones on & lower the front.
Left the old ones on my '77, front is still 3/4" high.
 
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Old Mar 21, 2017 | 06:08 PM
  #102  
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sadly i threw out the old springs last fall. im thinking i might move the mounting location on the top side inwards about an inch which should lower the rear around 2 inches i believe if my trigonometry is still correct.


 
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Old Mar 21, 2017 | 09:07 PM
  #103  
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I wouldn't do it. You will loose dampener resolution too as the spring will travel less and so will the shock.

I have the same issue and I'm considering these.

https://www.summitracing.com/parts/r...x250/overview/
 
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Old Mar 21, 2017 | 09:43 PM
  #104  
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I thought the inside diameter was 2.25 inches?? what is the stock spring height and rate?
 
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Old Mar 22, 2017 | 07:26 AM
  #105  
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Axles will no longer be parallel to the ground at rest. This ok? I'm thinking u-joints, they're a stressed member (upper control arm) of the rear susp.
Nice diagram btw... I'll be saving that!
 
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Old Mar 22, 2017 | 11:07 AM
  #106  
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Ditto:


It sure is a nice rendering. Me too!!!


Yes, indeed, laying the "coil overs" down will lessen the effect of not only the spring rate, but the dampening. Softer ride and perhaps not as steady.


Carrera shocks once were a popular source for "coil overs". The company offered a free consultation on weights angles and rates. Objective, of course, sell their product.
Still there and still willing, I dunno.


Carl
 
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Old Mar 26, 2017 | 12:06 PM
  #107  
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I actually got that from a stranger on another forum, they posted it on my thread and i scooped it up thinking that some here might need it.

On to the actual topic at hand: I think that the u joints will be fine (hoping so) I replaced them with all new moog parts and had all the bearings replaced in the hub and dif.

I wont be changing the mounts just looking at getting new springs. can someone fill me in on these specs of the stock springs:

overall height:
inside diameter:
outside diameter
coils:
coil thickness:
spring rate:

Im probably going to have custom ones made up and if its a reasonable price ill offer to be the middle man for anyone else here who would want some. Once I have the stock specs I can then make adjustments and then order them.
 
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Old Mar 28, 2017 | 10:31 PM
  #108  
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BMW M Pars?? Looking Good!
 
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Old Mar 29, 2017 | 12:48 AM
  #109  
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yes theyre reps, but im really liking them. looking at getting new tires for them shortly, maybe 245,40 in the front and 275/40 in the rears
 
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Old Apr 3, 2017 | 01:25 PM
  #110  
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anyone have the specs of the stock rear springs???
 
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Old Apr 3, 2017 | 02:35 PM
  #111  
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I was in the pay line to check out at the local "drug store". A fellow circa my vintage was also in line. My cart had a 12 pack of Beck's. He had a six pack Of Blue Ribbon.
Asked Beck's was good. I answered in the affirmative. he described his visit to the Pabst mansion and brewery and was impressed. Not only with the brew, but the craftsmanship in the Pabst home.


Yahoo, obstacle in parting a coil pack connector in Daughters Passat overcome. The six tentacle monster is on the bench. And three plugs pout on one bank. Not easy, buried in deep wells ala Chrysler Hemi. Shoulders sore, enough. So, before I mess something up, recess til tomorrow.


Lunch time, anyway. And nowadays, I work half days. or do I ? up at 5 or so and go til noon or so???




Carl
 
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Old Apr 4, 2017 | 08:01 PM
  #112  
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still in need of the rear spring specs, does anyone have any info on them?
 
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Old Apr 12, 2017 | 05:19 PM
  #113  
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I found this. has the exact info

you are looking for.
 
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Old Apr 12, 2017 | 10:28 PM
  #114  
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thats perfect thanks
 
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Old Apr 14, 2017 | 05:45 AM
  #115  
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How in the world did you find that?
 
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Old Apr 14, 2017 | 07:37 AM
  #116  
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I was looking through technical documents and searching for how many turns lock-to-lock is the XJS sport rack. I didnt find the answer to that question but did remember the aforementioned request.
 
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Old Apr 15, 2017 | 02:34 PM
  #117  
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ill be filling the gap with tire for now, 255/60/15 in the rear.

Will have something made up in the future tho
 
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Old Apr 15, 2017 | 04:41 PM
  #118  
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Originally Posted by sunchip
ill be filling the gap with tire for now, 255/60/15 in the rear.

Will have something made up in the future tho
There is 2.75 inch from the bottom on the spring purch to the center of the lower through bolt. I'm going to section the lower spring retainer and extend the step 1 inch which should lower the car 1.5 inches. Stay tuned. Gonna take some time as I have to cut the lower spring perch on a lathe.
 
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Old Apr 15, 2017 | 05:26 PM
  #119  
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thats a good idea. i wonder if i could do something similar, i have a friend whos a machinist maybe i could have him make somethign
 
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Old Apr 20, 2017 | 07:21 PM
  #120  
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i may have an idea for the rear springs. will update as things progress.

Also next week starts the awesome process of installing the painless wiring harness and setting up the brakes...

should be a fun couple weeks


side note:

can i jack up the spring perch in the front, remove the two bolts that hold the upper control arms to the sub frame and remove the spring that way?
 
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