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Old 06-05-2012, 06:34 PM   #1
Join Date: Jun 2012
Location: Concord, NC
Posts: 61
Shocks on Alko torsion suspension

Decided I would design and install shocks on our new 2012 Flagstaff 8528RKWS to see if it would lessen or hopefully eliminate the "dolphining/porpoising" that seems to be inherent with 5ers. After installing the curbside shocks and going to the driverside, I discovered the slide out mechanism prevented duplicating the curbside design. I had to change the angle of the shock and extend the upper mount to get the travel needed.

Bottom line, after towing approx. 50 miles on some wavy roads, the trailer will follow the road contour and not continue the bounce like it did before. The dolphining/porpoising was eliminated and I am very pleased with the results. The total cost of $294 was in the shocks and the (12) 1/2" x 1-1/2" Gr. 8 bolts and Gr 8 locknuts. I knocked out the 7/16" serrated bolts and drilled the serrations out to hold the lower bracket. Total time in fabrication and installation was about 20 hrs which included cleaning the hubs and repacking all 4 hubs and adjusting the brakes.

More pictures: http://www.irv2.com/photopost/showga...0&ppuser=89452
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Old 06-05-2012, 07:24 PM   #2
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Originally Posted by dunnnc View Post
the "dolphining/porpoising" that seems to be inherent with 5ers.

I have never had an issue with the 5er doing anything bad.

But The work you did looks better than professional.

Amateur Radio Operator (KE5DFR)|Full-Time! - 2012 6.7L Ford Crew Cab Dually -2013 HitchHiker Champagne 38RLRSB - Travel with one Standard Schnauzer and one small Timneh African Gray Parrot
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shocks, suspension

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