Rear gear in LS1 69 Camaro

[skeeters65]

Just wondering what you guys are running for a rear gear in you LS1 with T-56 conversion..

Car is a 69 Camaro. Tires are 335/35/17

Mostly street driven.. But I want a good performance gear..

Thanks

[Steve1968LS2]

If you're running a T56 with a .50 6th gear than I would reccomend 4.10 gears. I'm running 3.70s and 6th is still almost useless, I will be switching to 4.10s

That overdrive was only put into the cars for help meeting federal mileage requirements. Besides, 4.10s are fun

[jonnyc]

in my fourth gen car with 275/40/18s i've ran 4.10's and 3.73's.imo the 4.10's are to much unless you race alot.most of the time around town i would start out in 2nd gear with the 4.10's.
on the freeway with 4.10 @2000 rpms you'll be doing around 70mph and with the 3.73 @2000rpm you'll be around 80mph.
i will be using a 9" in my '69 running 3.90 gears

[JChristian1835]

The real key is how much hp/tq are you expecting or know you are putting down? cause that's gonna make a huge difference in the gears...

[MuscleRodz]

Factory t-56 you are either going to have a useless 1st gear or a useless 6th gear. If gas mileage is the game 3.73, if performance 4.10. 3.90 with a 9 inch rear probably about as good as it will get. That is what I will be running in my 68 Camaro

[jtmiller92]

I'm running 4.10's in my LS1/T56 car and love it, around town or highway is great.

[nitrorocket]

How is 1st gear acceleration with those gears, my 3.08 gears are not so hot, I would not recommend them unless you need to go 200 in 5th or something.

[slenning]

LS7,T56, 335/30/18 tires, 4.10 gears also. Only have around 120 miles on the car but I love the 4.10's so far! I've only been on the freeway once and I was enjoying it so much I never did look at the speedo. OK I'm no help at all, Sorry!!

[CarlC]

So what gear could be used with a stock/small camshaft?

[jtmiller92]

How is 1st gear acceleration with those gears, my 3.08 gears are not so hot, I would not recommend them unless you need to go 200 in 5th or something.

1st gear acceleration is great, anything below 20 MPH while rolling into the throttle roasts the tires though.

[jtmiller92]

So what gear could be used with a stock/small camshaft?

How small are we talking? I have the TR224 Cam on a 112 LSA. 224/224 .563/.563 and the 4.10's are prefect for what I want with occasional dragstrip times, keeps my powerband where I want it. Even with a little smaller cam like a Z06 I would think 4.10's would work well as long as its a T56.

[andrewb70]

If it were me, I would pick the rear gear that will allow you to go through the traps right at redline in 4th. I had 4.10s in the RX7 with a T56 and it was perfect. With a 26 inch tire I was hitting the rev limiter just as I crossed the traps. On the highway the 5th and 6th gears provided all the overdrive I needed.

So yah...I vote for a set of 4.10s. It will be easier on the clutch too.

Andrew

[HotRod68Camaro]

I have 28s w/ 4.10s. I cross the traps at the top of 4th. get 21mpg on the highway averaging about 70mpg. I wouldn't go anything else.

[Steve1968LS2]

If it were me, I would pick the rear gear that will allow you to go through the traps right at redline in 4th. I had 4.10s in the RX7 with a T56 and it was perfect. With a 26 inch tire I was hitting the rev limiter just as I crossed the traps. On the highway the 5th and 6th gears provided all the overdrive I needed.

So yah...I vote for a set of 4.10s. It will be easier on the clutch too.

Andrew

Hmm.. I have a 26" tire also... hmmm

[nitrorocket]

If it were me, I would pick the rear gear that will allow you to go through the traps right at redline in 4th.

Depends on your setup, Mine needs 3.08's to go through the traps, but 1st gear sucks on the street, I have to slip the clutch to get rolling and I idle at 10 mph. A litle tough in rush hour traffic to go 10 mph when everyone idles at 5 mph.

Ultimatly, that is the best way though, figure your quarter mile and gear for that.

[jonnyc]

The real key is how much hp/tq are you expecting or know you are putting down? cause that's gonna make a huge difference in the gears...

this is true.the more power you make the less gear you need.if you're over 450rwhp i wouldn't go any higher than 3.73 unless its a mostly drag car.if you're under 400rwhp i would run the 4.10