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Speedbumpauto · 02-24-2014, 01:42 PM

I used a US Gear V2 unit/TH400. Kind of the same but not as easy to split gears. The down side of the Gearvendors is it's only 22%, I think. The factory OD's are all about 30% as is the unit I chose. The upside of the Gearvendors is the ease of shifting and splitting gears. Mine is either in or out with a mechanical linkage. Mine has only driven in and out of the shop at this point but in today's world and lower prices, I think I would go with a 4L80 derivitive of some sort. Prices were crazy for stand alone's some years ago when I started my project and I was afraid to trust my 500cid big block to a 700R, etc.

02-24-2014, 01:42 PM	#3
Speedbumpauto Registered User Join Date: Aug 2011 Location: Tucson, AZ Posts: 917	Re: Gear Vendor's Under/Overdrive I used a US Gear V2 unit/TH400. Kind of the same but not as easy to split gears. The down side of the Gearvendors is it's only 22%, I think. The factory OD's are all about 30% as is the unit I chose. The upside of the Gearvendors is the ease of shifting and splitting gears. Mine is either in or out with a mechanical linkage. Mine has only driven in and out of the shop at this point but in today's world and lower prices, I think I would go with a 4L80 derivitive of some sort. Prices were crazy for stand alone's some years ago when I started my project and I was afraid to trust my 500cid big block to a 700R, etc.