4.10s or 4.56s
08-24-2007, 10:45 AM
#1
Registered User
Thread Starter
Join Date: Aug 2007
Location: Kannapolis, NC
Posts: 13
Likes: 0
Received 0 Likes
on
0 Posts
4.10s or 4.56s I broke two teeth off of my 4.10s in the 10 bolt on street tires and mild mods. This car is not a daily driver and is trailered to the track. I can't afford to put a 12 bolt in it. Should I stick with 4.10s or go to 4.56s? With the 4.10s, I was running 8.4s in 1/8 mile. Would 4.56s help or hurt the time?
08-24-2007, 11:48 AM
#4
TECH Regular
iTrader: (9)
Join Date: Mar 2006
Location: Fresno, Ca
Posts: 457
Likes: 0
Received 0 Likes
on
0 Posts
you may be shifting WAY too many times down the track with 4.56's but I have no personal experience with them so IDK. Find one of those gear calculators to see how many times you'd be shifting and where you will be at in what gear when you cross the traps
Trending Topics
08-24-2007, 01:03 PM
#10
On The Tree
Join Date: Mar 2005
Posts: 133
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by 180ls1
the 4.56 would give you more strength because it would spread the power across more teeth but i would stick to the 4.10.
Last edited by Billy177; 08-24-2007 at 01:35 PM.
08-24-2007, 01:07 PM
#11
TECH Senior Member
iTrader: (1)
Join Date: Nov 2001
Location: Waco, TX
Posts: 6,449
Likes: 0
Received 0 Likes
on
0 Posts
I love 4.56's. They are my favorite gear for a 6-speed. Anyone that knocks them has never driven a car with them. They are a blast. Go back to a 3.42 car and you'll be thinking "my God, this sucks". 
Would I use them in a 10-bolt? Probably not. As stated, they'll be weak. But I had a set in my 12-bolt, and I loved them. I have 4.30's in there now, but am going to go back to 4.56's since I miss them so much.
Would I use them in a 10-bolt? Probably not. As stated, they'll be weak. But I had a set in my 12-bolt, and I loved them. I have 4.30's in there now, but am going to go back to 4.56's since I miss them so much.
08-24-2007, 01:11 PM
#12
Why does everyone keep refrencing 6 speeds? He has a 700r.
I have 4.88s in my 3rd gen & it worked great with a 350 turbo trans behind a 355ci. If you don't mind the possibility of spending money on something that breaks quickly I'd give them a shot.
I have 4.88s in my 3rd gen & it worked great with a 350 turbo trans behind a 355ci. If you don't mind the possibility of spending money on something that breaks quickly I'd give them a shot.
08-24-2007, 01:17 PM
#13
Originally Posted by LS1 PONYKILLER
I broke two teeth off of my 4.10s in the 10 bolt on street tires and mild mods. This car is not a daily driver and is trailered to the track. I can't afford to put a 12 bolt in it. Should I stick with 4.10s or go to 4.56s? With the 4.10s, I was running 8.4s in 1/8 mile. Would 4.56s help or hurt the time?
3.73s however, are a decent bit stronger.. you'll probably blow out the posi or an axle before the gears... altough the gears are still a possibility.
you have a mid 8second eighth mile time, so its obvious you're still sorting out the car... with the 700s first gear, and your engine mods in your sig, i dont think having 3.73s will hurt you..
put the 3.73s in so you can race and sort the rest of the car out.... by then you should have a good chunk saved for the 12bolt/9in/8.8/whatever..
08-24-2007, 01:19 PM
#14
TECH Addict
iTrader: (22)
Join Date: Sep 2004
Location: tennessee
Posts: 2,639
Likes: 0
Received 0 Likes
on
0 Posts
you are probably gonna break whatever gear you throw in there but i think a 3:73 would last longer.you probably already know this but it would be a wise idea to start saving for either a 12 bolt or 9 inch or s60.the 10 bolt will just keep draining 2-300 bucks at a time until you could have already had a stronger rear.
08-24-2007, 01:28 PM
#15
TECH Senior Member
iTrader: (1)
Join Date: Nov 2001
Location: Waco, TX
Posts: 6,449
Likes: 0
Received 0 Likes
on
0 Posts
My bad, I missed the 700R part. I just see 4.56's and think 6-speed.
The first gear on the 700R is too deep (IMO) to work well with 4.56's. I'd stick with 4.10's in that case.
I just see 4.56's and think 6-speed.The first gear on the 700R is too deep (IMO) to work well with 4.56's. I'd stick with 4.10's in that case.
08-24-2007, 03:45 PM
#16
Registered User
Thread Starter
Join Date: Aug 2007
Location: Kannapolis, NC
Posts: 13
Likes: 0
Received 0 Likes
on
0 Posts
The only problem with saving money to put into the rear is that the car isn't completely mine. It's the dealership's that I work at. They just put their name on the car and let me run it at the track. They won't spend the money to actually build the rear, just to replace broken parts. I really like the way it performed with 4.10s. The wear pattern sucked on it though. Whoever put the gears in, didn't do it right. It was wearing high on the teeth which was probably a good part of why it broke.
08-24-2007, 03:48 PM
#17
Originally Posted by LS1 PONYKILLER
The only problem with saving money to put into the rear is that the car isn't completely mine. It's the dealership's that I work at. They just put their name on the car and let me run it at the track. They won't spend the money to actually build the rear, just to replace broken parts. I really like the way it performed with 4.10s. The wear pattern sucked on it though. Whoever put the gears in, didn't do it right. It was wearing high on the teeth which was probably a good part of why it broke.
(what a dealership cant even hold their own car together?! )
gotta pay some to play some... this is where the real politics in racing comes in... whenver money is involved. lol
08-24-2007, 05:21 PM
#18
Registered User
Thread Starter
Join Date: Aug 2007
Location: Kannapolis, NC
Posts: 13
Likes: 0
Received 0 Likes
on
0 Posts
yeah, exactly. stuff breaks. that's all there is to it. lol. at the same time the ring gear broke, the driveshaft got messed up too and the paid to have a custom steel driveshaft built. i'm just trying to decide whether i want to stay with 4.10s or 4.56s for my application. I know what the car does with 4.10s and where to shift and it's very consistent. i'm running 8.4-8.5 at 83 mph with .018 reaction times and 2.0 60 ft. times. what would 4.56s do to those times with z-rated street tires?