How did you get ahold of the truck?
Original Rear Shocks - 3 per corner, two 12" bodies and one 10" body per side. Reservoir hose connect on the bottom of the body.
Rear shock valving shim stack
(Looks like they used more low speed control profile on both rebound/comp compared to the front)
____18 x .50
______26 x .30
________30 x .35
__________36 x .45
__________36 x .30
_________32 x .30
________28 x .20
_______26 x .20
_____24 x .15
Thanks Joel, I really appreciate it! This shock had been pulled apart prior (no oil), so I was suspect of the valving after I took this pic. I pulled another shock apart, and all of the valving specs were the same just reversed. So on the pic, the nut is just on the wrong side of the stack & the piston was flipped (probably error on my part). So best that I can tell, the rear does use the compression side of the piston (& 5 shims) on the compression (pull) stroke. I have other rears that are still un-assembled, so I will confirm. Also curious if the shim material has changed over the years. Would the same stack used with the current material have the same rate?Looking at the layout of the rear shocks and the canitlever setup it looks like for the rear the side of the valve stack with 4 shims is actually the compression and the 5 shims are rebound. Also notice the piston is flipped compared to the front. As far as components goes a modern 14mm rod guide can retrofit the old 4 piece rod guide pictured and I am sure that a current 46mm viton oring will work in the IFP. Heims also look to be replaceable with modern units. The tubes are all customized 46mm with non Bilstein fittings and hoses. Feel free to contact me therough normal channels if you need some donor parts or if you want to retrofit with 60mm dampers. [email protected]
I dont believe there has been a significant change in materials. The 8mmID shims still come from Germany as they always have.Thanks Joel, I really appreciate it! .... Also curious if the shim material has changed over the years. Would the same stack used with the current material have the same rate?
Yeah, much different and simplified (refined) today due to the use of modern tech and larger/bypass (fewer) shocks. Just a different WOW factor. The guys working on these at PPI were and are amazingly talented.That's awesome. A lot of the trucks built today are fantastic and all, but I just love the modular trucks of yesterday. Thanks for sharing!
There are still a few PPI guys around that were involved in the design and campaigning of that truck. They may be able to aid you with some of your questions. Send me a PM if you need contact info.
Thanks guys! PMs sent.If you need to get ahold of Tommy Morris, the former PPI crew chief/program manager you can PM me....
jajaja, yeah he needs it. But if the mag rear was to be replaced with desert set up, I think I would clean it up and set it on my coffee table and just to look at. It's a nice piece of art!Maybe Rory will trade you for that center section for his Mickey thompson project.