Borgeson released a new PS box for our first gens in April 2018. Its a 12.7:1 ratio box that is a direct, bolt in replacement for the Saginaw boxes.
I had contemplated doing the IROC swap, as many have done. But it seemed like a lot of work chasing down small parts and getting the correct box. Instead, I took a chance on the new Borgeson box. It has made the Z much more enjoyable to drive. The feel is firm, the car doesn't wander as it did with the old PS unit. I feel more confident taking cloverleafs at speed.
It was an easy installation (did it when I had the engine out). Total cost was $600. $500 for the box and then $100 for the new rag joint. I reused the old PS Pump and lines, just had to flush it.
I have headers and this box clears them, as did the old Saginaw unit.
I've got about 200 miles on the new box. This is a must have if you drive your cars regularly. Thanks Borgeson!
http://www.borgeson.com/xcart/product.php?productid=1792&page=1
I had contemplated doing the IROC swap, as many have done. But it seemed like a lot of work chasing down small parts and getting the correct box. Instead, I took a chance on the new Borgeson box. It has made the Z much more enjoyable to drive. The feel is firm, the car doesn't wander as it did with the old PS unit. I feel more confident taking cloverleafs at speed.
It was an easy installation (did it when I had the engine out). Total cost was $600. $500 for the box and then $100 for the new rag joint. I reused the old PS Pump and lines, just had to flush it.
I have headers and this box clears them, as did the old Saginaw unit.
I've got about 200 miles on the new box. This is a must have if you drive your cars regularly. Thanks Borgeson!
http://www.borgeson.com/xcart/product.php?productid=1792&page=1


). Where are guys placing aftermarket tach's in their 69's that have the rotating steering column? If you could, please post some pics and tell the size of the tach. I've read people have placed them either on the pillar or top of the dash. I'd like to see what that looks like.