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914World.com _ 914World Garage _ How to install Threaded perches onto a rear shock.
Posted by: Aaron Cox Dec 10 2005, 09:29 PM
First begin by lifting car off the ground, and securing with jackstands.
with the [parking brake on, put the jack under the rear wheel you are working on....
1. undo the retaining nut, visible in the rear trunk.
2. Pull rubber mount and support and washer.
3. slowly lower jack until you are able to rotate the rear shock out toward the rear of the car.
NOTE - if you have a rear sway bar, you must undo the droplinks to allow the trailing arm to lower enough., also, if engine is in the car, you would need to pull axles, or at least pull the bottom shock mount bolt)
4. undo lower rubber mount, simply unscrews from shaft.
5. pull complete spring assembly and top spring hat.
6. set ride height circlip to desired notch. in this case uppermost notch.
7. slide on threaded collar. make sure you order the right ones for your shock. use a set of vernier calipers to measure shock OD.
slid all the way on and resting on circlip. 
8.ziptie new springs to new upper spring hat. slide onto shaft of shock.
9. Put original washer/spacers on. then put lower rubber spring bushing back on. tighten. use allen wrench to hold shaft.
10. tilt shock back into its opening. lift with jack, secure.
DONE
reattach swaybar.....
Posted by: sean_v8_914 Dec 10 2005, 09:57 PM
why does your tire look like it's leaning out at teh top?
Posted by: Aaron Cox Dec 10 2005, 09:58 PM
| QUOTE (sean_v8_914 @ Dec 10 2005, 08:57 PM) |
| why does your tire look like it's leaning out at teh top? |
suspension is below full droop
Posted by: McMark Dec 10 2005, 10:02 PM
Couple things. If you have stock springs you're starting with you need a spring compressor. Otherwise you'll be shooting things across the shop and breaking stuff or hurting yourself.
Also, It's easier to undo the bottom shock mount with a couple of crescent wrenches than to remove the axles.
Posted by: Aaron Cox Dec 10 2005, 10:04 PM
| QUOTE (McMark @ Dec 10 2005, 09:02 PM) |
| Couple things. If you have stock springs you're starting with you need a spring compressor. Otherwise you'll be shooting things across the shop and breaking stuff or hurting yourself. Also, It's easier to undo the bottom shock mount with a couple of crescent wrenches than to remove the axles. |
yep. motor was out.... so.. were the axles.... easier to pop of the droplinks for me...
and yes. if not using aftermarket springs, then a spring compresser would be needed.....
thanks for the addition mark.
AA
Posted by: J P Stein Dec 10 2005, 10:17 PM
Golly, mine wasn't that easy. I assembeled the top differently
so the spring would hang off the top & not flop around.
Attached thumbnail(s)
Posted by: r_towle Dec 10 2005, 10:25 PM
tell me something about these springs please...
Right now I have 180 lbs weltmeister springs...
I have the same bilstiens...
If I was to get the threaded perches...I would need new springs...but is 180 lbs in the small diameter springs really the same as 180 lbs in the weltmeister springs???
I keep hearing 250lbs and up with the smaller springs...
It makes my teeth hurt thinking about getting stiffer springs...Just wonder if the rates are comparable...
And, what does this entire package cost???the threaded perch , and the other parts to make it work...
Rich
Posted by: Aaron Cox Dec 10 2005, 10:30 PM
colemanracing.com for the perches. 25 a side.
springs... any rate (25lb increments or finer...) are available on 8" 10" or 12" springs.
available anywhere. 2.5" ID x X length....
Posted by: Aaron Cox Dec 10 2005, 10:49 PM
JP... you put the washer under the hat?
ok. gotcha... disregaurd my pm then... LOL
Posted by: r_towle Dec 10 2005, 10:56 PM
how did you determine the length of the springs?
Rich
Posted by: Aaron Cox Dec 10 2005, 11:00 PM
| QUOTE (r_towle @ Dec 10 2005, 09:56 PM) |
| how did you determine the length of the springs? Rich |
asked.....around.
most people use 10". it puts the collar lower, where it can be easier to adjust.
i had a killer deal on new 8"ers.... so i couldnt refuse.
do a search youll find at lesst 2 threads by me debating 8 vs 10 vs (some say 12 or 14!!!)
Posted by: McMark Dec 10 2005, 11:38 PM
| QUOTE (r_towle @ Dec 10 2005, 08:25 PM) |
| but is 180 lbs in the small diameter springs really the same as 180 lbs in the weltmeister springs??? I keep hearing 250lbs and up with the smaller springs... |
My understanding of spring ratings is that it take 180 lbs of force to compress a 180 lbs spring. Size doesn't enter into it.
Posted by: Aaron Cox Dec 10 2005, 11:41 PM
| QUOTE (McMark @ Dec 10 2005, 10:38 PM) | ||
My understanding of spring ratings is that it take 180 lbs of force to compress a 180 lbs spring. Size doesn't enter into it. |
welts are progressive.....
these are linear. progressives are also available
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