[Jeff Chambers]

I'll have to agree that the HP estimates are over-optimistic on 24#, even with the 150 shot of giggle gas. If I'm reading your sig correctly, you've just got the Lentech VB and not the complete trans? Your hard hit at 20mph sounds like a problem with the governed downshift to low after engine braking in 2nd. Be sure and explain all symptoms to Len/Ross/Chris at Lentech when you give them a call. They may be able to diagnose a line pressure problem (or something else). It could be a problem with too much/little clearance in the clutch packs as well. Like I said, give them as much description on the problem as possible and they should be able to diagnose it. I guess what I'm trying to say is that if it is someone else's trans (or stock) with a Lentech VB, the problems may not be related to the VB at all.

As far as the axles go, there should be some clearance between the axle end and the cross-shaft. If I remember correctly, the factory spec is something like 0.030". It could be bound up (especially when things expand when hot) if he had to force the axles/cross-shaft into place when assembling the rear. Doesn't sound real kosher to me.