| From experience I can tell you that they do not understand or check for the differences in ratios of NA and TT racks. They assume that the cores they get in return are always the same as the unit they sold. Over time this eventually gets so scrambled up that it is a complete toss up. If you order a TT rack you may or may not receive a rack that actually has the quicker TT ratio. It is just pure luck if you do get the one you ordered. We have Z32 steering racks re-manufactured in large batches. When they return to Z1 we check them all with fabricated test tools to QC everything and verify whether they are actually NA or TT to ensure customers get the correct rack they order.
Russell Floyd Z1 Motorsports www.300zx.com 1990+ Nissan Z specialists Used Parts, New parts, Service/Repair and Performance Z1 Motorsports Exclusive Parts Line 2877 Carrollton Villa Rica Hwy Carrollton, Ga 30116 770-838-7777 770-832-9253 (fax) 
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