Gear Recommendation Please!
Thread Starter
Joined: Oct 2007
Posts: 446
Likes: 1
From: Oakland, California
Gear Recommendation Please! Hi guys,
I'm getting ready to build the rear end on my 72 Nova (8.5 10 bolt open diff), and am coming to you guys for recommendations on gears. I will be going with an Eaton 30 spline carrier.
I am dropping in an LQ4, cam, intake, and milled 243 head engine. This will all be backed by an f-body T56.
I plan on doing more street than strip driving. I was thinking between 3.73s or 3.90 gears.
What would you guys recommend?
Thank in advance!
I'm getting ready to build the rear end on my 72 Nova (8.5 10 bolt open diff), and am coming to you guys for recommendations on gears. I will be going with an Eaton 30 spline carrier.
I am dropping in an LQ4, cam, intake, and milled 243 head engine. This will all be backed by an f-body T56.
I plan on doing more street than strip driving. I was thinking between 3.73s or 3.90 gears.
What would you guys recommend?
Thank in advance!
Teching In
Joined: Oct 2006
Posts: 48
Likes: 0
From: Vancouver BC
Are you doing any drag racing? I'd figure out what tire you will run then plug it into a calculator like http://www.andysautosport.com/learni...r/calculators/ there are a bunch of similar calculators online.
Thread Starter
Joined: Oct 2007
Posts: 446
Likes: 1
From: Oakland, California
Are you doing any drag racing? I'd figure out what tire you will run then plug it into a calculator like http://www.andysautosport.com/learni...r/calculators/ there are a bunch of similar calculators online.
Thanks for the link! i was crunching some number in the calculator. It looks like even with a 3.90 gear and 27 inch tires I would do great in the highway. Doing 78mph, I would only be spinning 199RPM's. Not bad.
Has anybody ran a 3.90 on a similar setup? How have you liked it?
Last edited by hcb1700; Aug 11, 2017 at 11:53 AM.
Thread Starter
Joined: Oct 2007
Posts: 446
Likes: 1
From: Oakland, California
Thanks for the reply guys. I crunched some numbers on a couple of online calculators, and called Moser's tech support.
It looks like 3.90s are the way to go for me
.
It looks like 3.90s are the way to go for me
. 
