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Old 03-13-2015, 10:45 AM   #9
Possmguts
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Join Date: Nov 2014
Location: Columbiana Ohio
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Re: Anyone using Gear Vendors Over/Under Unit?

Quote:
Originally Posted by Fitz View Post
I backed up a built TH400 with a Gear Vendors unit. Splitting gears is easy with this overdrive BUT my TH400 was built by JWRacing and it has no automatic shift. The auto shift valve was replaced with a manual unit so I never have to dance between the gear Vendors unit and the trans when running up from a standing start. And, yes, it does make the 3 speed act like a six. I run a 4:10 rear but in third over rpm's are 2200 at 70 mph!

The trans/overdrive combo is long (on mine the yoke is just 8 inches in front of the trailing arm crossmember) so you will need a MUCH shorter driveshaft. It will handle more torque than a 700R4 so for me it was a much better choice.
In your pic it looks like the trans mount was moved back... is it?
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