So I just spent the last couple of months ripping out my retracts, putting in a 
Diehl gear assembly, foaming and glassing the resulting holes and today I put 
my Matcos on only to find that the camber between the wheels isn't even 
remotely close. I sat there in a very pissed off mood measuring and 
re-measuring again only to find that the lower gear brackets do not share the 
same angle formed between the gear leg and the axle. As a matter of fact, it 
turns out that between the two, they're several degrees off (about 4 degrees). 
For those of you messing around with gear geometry at this point in your life, 
you know that this is a lot of degrees. I can't understand this - it never 
occurred to me to check this prior to bolting them to the gear legs. In 
fairness to the people at Diehl, I bought the assembly second-hand, but it 
obviously was not damaged. And judging from what I see on the web, it sure 
looks like a Diehl assembly. Moreover, a shim is really not going to work very 
well - a quick computation with my CAD program indicates that a 4 degree 
tapered shim behind the axle is about .210 thick. I'm just sick about this 
mess. Anybody out there got any clever solutions short of ripping my plane 
apart again? 

Mike Meyer 

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