01-13-2017, 12:51 AM | #26 |
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Location: Beautiful BC, Canada, eh?!
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Re: Upper link bar angle
You will have ~some~ pinion change because your upper and lower link arms are not the same length. If they were the same length, the pinion angle shouldn't change at all.
Just optimize the pinion angle for whatever ride height you will run the most. Other heights will be a compromise (good thing you made it adjustable *big*grin*)
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1961 Apache: "Grabber Orange" Shortboxed, pancake, step-notch, air-ride, turbo, LS 1977 Silverado: Shortboxed & dropped, potato-potato V8 Pontiac Firefly (Chevy Sprint): The ultimate engine swap: 5.7L in a 1.0L bag Lotus Super 7 Replica: Scratch-built street-legal rollerskate |
01-13-2017, 02:15 PM | #27 | |
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Re: Upper link bar angle
Quote:
How do you plan to get 10 inches of travel up? Bag on bar? That is a lot of travel and could result in a harsh ride with the needed pressure to get there. I would install my notches now to see the actual angles of everything as you are kinda working opposite. I would also shorten the lower bars in order to minimize the change in pinion angle. Lastly, from a visually pleasing perspective I would rework the upper front link tabs to make them "flow" better. Hope this helps.
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David Used parts build: http://67-72chevytrucks.com/vboard/s...d.php?t=638991 My brother's Nova: http://www.67-72chevytrucks.com/vboa...d.php?t=727985 Rear suspension rework: http://www.67-72chevytrucks.com/vboa...d.php?t=750557 Instagram: myfabguy |
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01-13-2017, 11:59 PM | #28 |
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Location: Lunenburg Ma
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Re: Upper link bar angle
I was just cycling it and I jacked he frame up 10 inches. Not planning on going that high. It's not notched so I can only cycle it one way to check for binds. I am gonna put a gusset up the upper tabs it's not ideal but should work. I don't really know what else to do there. That's where the bars fall.... I should shorten the lowers bars huh? Cuz I was told longer the better and I didn't cut any of them. I read the top bars should be 70% of the lowers
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01-15-2017, 04:25 AM | #29 | |
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Re: Upper link bar angle
Quote:
Longer is better to a point. The 70% thing isnt really correct and I would say that your upper bars should be AT LEAST that long. You can make them longer (or lower bars shorter).
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David Used parts build: http://67-72chevytrucks.com/vboard/s...d.php?t=638991 My brother's Nova: http://www.67-72chevytrucks.com/vboa...d.php?t=727985 Rear suspension rework: http://www.67-72chevytrucks.com/vboa...d.php?t=750557 Instagram: myfabguy |
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01-15-2017, 01:29 PM | #30 |
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Re: Upper link bar angle
When designing a short-long-arm "double wishbone" suspension for front suspension, a 70% upper arm is a reasonable ball park (but there is a lot more to it than that).
On a rear suspension, upper arms are only short because there is usually a back seat there.
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1961 Apache: "Grabber Orange" Shortboxed, pancake, step-notch, air-ride, turbo, LS 1977 Silverado: Shortboxed & dropped, potato-potato V8 Pontiac Firefly (Chevy Sprint): The ultimate engine swap: 5.7L in a 1.0L bag Lotus Super 7 Replica: Scratch-built street-legal rollerskate |
02-05-2017, 10:46 PM | #31 |
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Re: Upper link bar angle
Redid my upper bars. Found my instant center. Now my upper bars would intersect with the lowers in front of the bumper. If they kept going obviously
.. also I decided to back half it bc there was a lot of pitting on the rear rails. |
02-05-2017, 10:49 PM | #32 |
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Re: Upper link bar angle
Back half removed
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02-05-2017, 10:59 PM | #33 |
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Re: Upper link bar angle
Reworked upper bar tabs. Back half cut off
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02-06-2017, 02:55 PM | #34 |
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Location: San Jose Ca
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Re: Upper link bar angle
Bars and tabs look a lot better.
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David Used parts build: http://67-72chevytrucks.com/vboard/s...d.php?t=638991 My brother's Nova: http://www.67-72chevytrucks.com/vboa...d.php?t=727985 Rear suspension rework: http://www.67-72chevytrucks.com/vboa...d.php?t=750557 Instagram: myfabguy |
02-13-2017, 05:35 AM | #35 |
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Re: Upper link bar angle
TRIANGULATED REAR 4-LINK ASSEMBLY
AND INSTALLATION TIPS https://assets.adobe.com/link/17afad..._public&page=3
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