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AMT Kenworth K123 Rear Suspension

5 posts in this topic

Posted (edited)

Did a search, but having trouble viewing pics. How much of an angle should the rear axle supports be? Seems like trouble for me. Thanks.

Edited by ss2000

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Posted (edited)

Did a search, but having trouble viewing pics. How much of an angle should the rear axle supports be? Seems like trouble for me. Thanks.

Hendrikson walking beam rear end? The "u" section should face like a u. Differential fits into the u. Hope this helps. Have you got any old school trucks in your neighbor hood that you could check out? 

Ben

Edited by Bennyg
Description of suspension

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Posted (edited)

I was at the ATHS show in Des Moines, IA in May and one thing that struck me was how many of the Kenworths there had the Peterbilt air ride suspension on them.

I asked the guys there why this was the case, and they all replied with the same answer -- "the Kenworth 8-bag suspension was expensive and didn't ride nearly as nice as the Peterbilt air ride".

Here's a picture of the rear suspension on the "Movin' On" KW:

 

DSCN2225.JPG

Edited by Goodwrench3

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Posted

Joe asked about the K123 suspension, that kit has a Hendrickson Walking Beam, not the Air Glide 100 8-bag air suspension as the K100 Aerodyne kits.
Air ride of whatever kind is also wrong if you want to do a correct replica of the Movin' On truck, it had Torsion Bar.

But yes, I have also read that many KW owners has changed to Peterbilt Air Leaf as it rides a lot smoother than the old KW AG 100 and 200, nowadays Kenworth and Peterbilt share at least one of the suspensions, Peterbilt Flex Air and Kenworth Air Glide 380...different names but the same suspension.

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Posted

Joe asked about the K123 suspension, that kit has a Hendrickson Walking Beam, not the Air Glide 100 8-bag air suspension as the K100 Aerodyne kits.
Air ride of whatever kind is also wrong if you want to do a correct replica of the Movin' On truck, it had Torsion Bar.

But yes, I have also read that many KW owners has changed to Peterbilt Air Leaf as it rides a lot smoother than the old KW AG 100 and 200, nowadays Kenworth and Peterbilt share at least one of the suspensions, Peterbilt Flex Air and Kenworth Air Glide 380...different names but the same suspension.

Pete and KW also share the Pete Low leaf aka the KW ag400L. Pete air ride was actually a factory option on KW's back in the 70s paticularlly before the 8 bag came out. KW also had a 4 bag before the 8 bag that dated back to the 50s. You can recognize it by the air bags tilted at an angle. Yes the Pete air rode much better than the early ag100's. Somewhere in the 90's Kw redone the ag 100 with bigger air lines and faster valveing which made it much better. The ag 200 and ag 400 also ride better than the old ag 100. As far as the original question goes The front drive axle should be level with ground and the rear drive will be determined by the middle drive shaft length usually level or just slightly nose up.

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