Yea but they all whine like crazy

 

 

So you are suggesting 4.10s even after you have proved they arent good for what he wants. Nice.

 

i had 3.73 in my 10 bolt when it blew up. now i have 410's in my ford rear end and i love them, srry that wasnt very clear. he is going with a strange 12 bolt so he doesnt have to worry about breaking it like the damn 10 bolt.

 

Actually I have 4.10's in a 10 bolt with several street races and six 11 second passes at the track. with the 4.10's i am actually in my powerband faster which gives me an upper hand. now you do have to shift faster but you will get you used to that quick. you have to. I did a roll race before and after from 60 with the same car and didnt lose any top end up to 130mph just had to shift more. after that i dont know.
so 4.10's all the way

 

You keep up with a stock car from a 60 punch.

 

I have 4:10s in my 10 bolt, work great..i have raced on street and at the track on nitto DRs, and 10 bolt is still there and intact!

 

reread. i said same car. will's car actually which has 3.42's or highway gears and i pulled him a lil with 4.10's.

 

4.10 Only if you are serious

 

4.10's = Going into 5th at 118mph or so. Sucks big time, so forget about highway runs.

3.73's = If you plan for anything faster then heads/cam or more.


Peace,
Craig.

 

3:73's my opinion.

 

i normally peg 4th out around 125ish at 6700RPMS.

but i dont like to run past that MPH. If i cant beat someone from 50-120, i wont beat them past 120+.


but i cant remember the last time i got a descent race anyways.

 

You should be able to run up around 125mph in 4th with 4.10's
unless you like to shift at 5.8K-6K rpms..

 

I like 3.73's Also.

 

how much does it cost to buy/install 4.10's.... and what about with a 12bolt??

I wanna get some!

 

Contact Jason Baily at Texas Drivetrain Performance.. His number is 817-300-6840 He does them for $400.00 out the door installed with new GM gears of your choice, crush sleeve, pinion nut, and fluid.. If you need all new bearings that will be extra.. Tell him Dan sent you.. He is one of the best installers around when it comes to F-bodys.. Just give him a call and he can answer any questions you might have.. He's a great guy to do buisness with.. And alot of people from LS1tech have already had him install there gears..

 

Depends on what tire size you are running. I KNOW that I ran out of gear with 4.10's, 6,600rpm rev limiter with heads/cam at the track. You can even look here where I bounced of the rev limiter for at least 100ft and I trapped 119mph on street tires:

http://community.webshots.com/photo/...64997332FJjclq


When I had 26" E/T Streets did I barely get through.



Again, depends on what tire size we are talking about here. With the stock tire height of 25.5" you will shift around 118-120mph.


Peace,
Craig.

 

stock size tire and 4.10's puts 4th at 125 @ 6700rpm. I trapped 119 with no problems.
http://www.f-body.org/gears/

 

I'm no expert, does gearing in the transmission affect it much?

 

I am getting a 12 bolt soon, and I was thinking about going with 373's or 410's. Most people said to go with 410's. What about 390's? Do you think that is a good choice with a M6 F-body? I have heard that 390's whine bad, but I have also heard that it may have something to do with the person that sets them up ( something about the back-lash ) I really don't know. I wanted to go with 390's so I could stay in the gears a little longer and I wouldn't have to shift as much. Does anyone have any advice on any of these things.
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