XJ6 & XJ12 Series I, II & III 1968-1992
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Pabst Blue Ribbon meets Tea and Crumpets

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  #101  
Old 03-20-2017, 09:37 PM
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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.
 
  #102  
Old 03-21-2017, 06:08 PM
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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.


 
  #103  
Old 03-21-2017, 09:07 PM
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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/
 
  #104  
Old 03-21-2017, 09:43 PM
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I thought the inside diameter was 2.25 inches?? what is the stock spring height and rate?
 
  #105  
Old 03-22-2017, 07:26 AM
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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!
 
  #106  
Old 03-22-2017, 11:07 AM
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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
 
  #107  
Old 03-26-2017, 12:06 PM
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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.
 
  #108  
Old 03-28-2017, 10:31 PM
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BMW M Pars?? Looking Good!
 
  #109  
Old 03-29-2017, 12:48 AM
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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
 
  #110  
Old 04-03-2017, 01:25 PM
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anyone have the specs of the stock rear springs???
 
  #111  
Old 04-03-2017, 02:35 PM
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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
 
  #112  
Old 04-04-2017, 08:01 PM
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still in need of the rear spring specs, does anyone have any info on them?
 
  #113  
Old 04-12-2017, 05:19 PM
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I found this. has the exact info

you are looking for.
 
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  #114  
Old 04-12-2017, 10:28 PM
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thats perfect thanks
 
  #115  
Old 04-14-2017, 05:45 AM
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How in the world did you find that?
 
  #116  
Old 04-14-2017, 07:37 AM
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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.
 
  #117  
Old 04-15-2017, 02:34 PM
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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
 
  #118  
Old 04-15-2017, 04:41 PM
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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.
 
  #119  
Old 04-15-2017, 05:26 PM
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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
 
  #120  
Old 04-20-2017, 07:21 PM
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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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