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Rear Suspension Tech 101 Engine torque is transmitted to the rear axles through the ring and pinion gears. Due to the nature of the action of the pinion on the ring there is a torque load (lifting force) transmitted to the rear of the chassis. This load can be controlled with the suspension...

Yep

There are 2 different aspects to this issue - Dustan's handling of the GP and balljoint vs heimjoint front ends. I have a problem with way the GP was handled and at the point when I was charged the balance with promises of immediate delivery and received nothing I made my displeasure known...

This IS the one that's going on my motor.

Listen, I feel sorry for everyone who has been involved with the Dustan GP - for several reasons. Don't project your disappointments and doubts to me - it ain't my fault. I (as I suspect were many others) was dazzled by the post on the BB last year about the Dustan equipped Syclone besting a...

Yes. Correct. A major drawback to this setup is that once the engine is balanced if one part needs to be changed such as the flexplate or dampener the engine will (probably) no longer be balanced. If we ran manual transmissions with flywheels there might be some benefit to going with...

PEP builds and repairs Sprint cars, Limited Sprints, and Modifieds. The Sprints use over 50 heim joints each. You could say Dennis is very familiar with them, their proper use, thier limitations. He uses them in custom street applications *where appropriate* such as in 4-link rear...

Wrong about Comp Fab's part maybe, but the bit about the a-arms using bjs and bushings was right and that was the point. C'mom, this nonsense with Dustan has been going on for at least a full 8 months now - of course people are going to bitch.

Re: Lowering shocks a must??? I spoke to the techs at Bilstein regarding this when I put the lowering leafsprings on the Syclone. They said stock shocks are OK up to a 1" drop, beyond that you should use drop shocks.

A few weeks? Easily. The powdercoating is 2-stage, silver than clear. Dennis always makes jigs for precision assemblies - it makes no difference if this is the only set he makes or if he makes 20 sets. They go together fast and they go together identically to all of the other a-arms.

MOST SyTy engines are externally balanced MOST SyTy engines are externally balanced MOST SyTy engines are externally balanced - not all. The engine being built for my Syclone is being converted to internal balancing. It's not that big a deal, costs around $200 extra and involves drilling...

I don't recall saying your stuff is "junk" and I have no reason to believe it's not adequate. I AM glad you did a lot of testing with this design. Dennis has done many a-arm front suspensions using the much more common modified OEM ball joint/bushing configuration which is why he could develop...

The only 2 times I was able to get you on the phone was the two times you billed my credit card. In fact the only reason you called me the second time was that the wait had stretched out so long the credit card expired and you needed the new expiration date. "your kit is packaged and ready to...

OK, I was gonna hold my tongue but since you bring it up - lets compare. I ordered a front suspension kit from you on April 7. This kit had already been designed and was running on one or more vehicles. After almost 7 months of waiting, having numerous promised delivery dates pass, hearing...

Dennis can get the economy Heims for less than $9 each. DPT uses 6 on each side. Quality upper and lower ball joints cost at least that much. Plus the poly bushings. OK, maybe I was exaggerating when I said the bjs + polys were double what the Heims are but they are certainly no cheaper...

Oh yeah, almost forgot. The shape of the PEP a-arms are true "A"s. No curves. Much stronger than stock or other kits, due to both shape and strength of the a-arms (they're actually "overengineered" for safety and longevity).

I sent you my cell number in a PM

OK, I had to check with Dennis to make sure I had this right. Awesome question BTW. The major problem with the stock front suspension geometry is that the 4WD front suspension was never meant to be set to such a low ride height as we have. This causes there to be an extreme "cocking" of the...

Actually, Dennis weighed this out yesterday. Removal of the stock upper and lower a-arms, torsion bars, and torsion bar crossmember removes just about 109 lbs. The new parts weigh about 32 lbs (with different coilover shocks and springs than will actuall be used but should weigh just about the...

Have you priced ball joints lately? Economy Heim joints? I guarantee you that the ball joints and poly bushings cost double what the Heims cost. Also, the chromemoly PEP is using is extremely beefy - the heavier the tubing the more $$...