Trike rearend question: - Steve Saunders Goldwing Forums

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post #1 of 6 (permalink) Old 06-29-2018, 06:36 PM Thread Starter
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Year: 1983
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Trike rearend question:

I'm planning a trike build with a '93 Aspy. Instead of cutting down the axles to narrow the width and offset the differential to align with the existing driveshaft, I'm thinking of leaving the axle as is and using a jackshaft to run the driveshaft down the center.


Any (constructive ) thoughts on this?


Thanks!!

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~Gil
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post #2 of 6 (permalink) Old 06-29-2018, 06:52 PM
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Be sure to mount the jackshaft securely to the axle housing . I would consider a 2 or 3" width cogged drive belt instead of a chain drive.

Mike
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post #3 of 6 (permalink) Old 06-29-2018, 06:52 PM
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I would not even consider a "jackshaft".


My Lehman has the driveshaft coming from output shaft to Ford 6.5" (ring gear dia., 3.08:1 ratio) pinion yoke, and both shafts are to right of center but still not in perfect alignment, so it uses U-joints at each end. Most car rears have the shaft off center to right side, as does your GL-1500... inside the swingarm.


Find a narrow enough axle and you can use wheel spacers to fine tune side to side. Old Pintos & etc used 6.5" rear as in my Lehman, I think some used an 8" rear though that seems a bit overkill.
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post #4 of 6 (permalink) Old 06-29-2018, 08:19 PM Thread Starter
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Thanks!! Jackshaft out!!
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Rubber down, chrome up, throttle open!!

~Gil
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post #5 of 6 (permalink) Old 06-29-2018, 09:29 PM
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Quote:
Originally Posted by CrystalPistol View Post
I would not even consider a "jackshaft".


My Lehman has the driveshaft coming from output shaft to Ford 6.5" (ring gear dia., 3.08:1 ratio) pinion yoke, and both shafts are to left of center but still not in perfect alignment, so it uses U-joints at each end. Most car rears have the shaft off center to left side, as does your GL-1500... inside the swingarm.


Find a narrow enough axle and you can use wheel spacers to fine tune side to side. Old Pintos & etc used 6.5" rear as in my Lehman, I think some used an 8" rear though that seems a bit overkill.

That's the right, not the left, I make that mistake I think from years of standing in front of cars and what's on my right is the left and vise verse. I have wondered why the diff isn't offset in trikes to better align the shaft.
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post #6 of 6 (permalink) Old 06-29-2018, 09:39 PM
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Quote:
Originally Posted by DaveO430 View Post
That's the right, not the left, I make that mistake I think from years of standing in front of cars and what's on my right is the left and vise verse. I have wondered why the diff isn't offset in trikes to better align the shaft.
U IS'O RIGHT!


I don't know how I did that . Good catch!

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