you will love the 3.70 gears with the 700r4 ..its perfect match.. I got a little different gift for Christmas... A Bushmaster M4 ... I was a good boy this year
you will love the 3.70 gears with the 700r4 ..its perfect match.. I got a little different gift for Christmas... A Bushmaster M4 ... I was a good boy this year
Most GPS units will show your speedone of these days, I m gonna have to see just what mine will top out at.. I ve had it to 150+ and it wasn t near done.. its peak horsepower is at 6200rpm,with 6800 redline.. in 4th gear, with 27 inch tall tires, top end should be pretty high..problem is ,my Pro-Comp speedo stops at 160 !
what type of ring & pinions do corvettes have, 2 series or 3
or are Corvette in a class of there own? I have 3.73's right now and i wanna try 4.10/4.11 (as long as I stay below 3,000 RPM's on the highway)
Nice Gift !
Thanks for the infoAfter talking to the Summit sales representative I found the 1963 thru 1979 Corvette gears are only used by the Corvettes as they aren't used in any of the other G.M. lines. So they are a bit harder to find and also a bit more expensive.
As far as the "series" goes a "2" series means the carrier will only accept ratios in the "2's" like 2.72's or 2.87's. The "3" series means the carrier will accept any ratios in the "3's" like 3.08's, 3.31's, 3.55's, 3.73's, and 3.90's. Then the "4" series carriers will accept ratios like 4.11's, 4.56's, and 4.88's. There are spacers available so you can put the thinner ring gears used for the 4.11's, 4.56's, and 4.88's onto the "3" series carriers but it requires longer bolts and isn't recommended for drag racing usage. Some gear manufacturers offer thicker 4.11, 4.56, and 4.88 ratio ring gears that will bolt up to the "3" series carriers without having to use a spacer and longer bolts.
Duntov has the 4.10 thick gear setsThanks for the info
found a set on jegs.com richmond gear was $300-400
but dont know if they have a thicker ring gear for 3 series
I started with a 3.07 paired with a 4 speed which was not too good bottom end. Then I switched out to a 3.70 and is a lot better bottom end, but sucked on the highway. I swapped out the 4 speed to a T56 6 speed. Now it is so much better all around! :woowoo: You will really enjoy the 3.70 with the OD trans. :thumbsup3:
Thanks for the info
found a set on jegs.com richmond gear was $300-400
but dont know if they have a thicker ring gear for 3 series
I debate on 3.50 verse 3.70, it winds up super fast in first gear with the 3.08's and the 3.06 1st in the 700r4. traction is already at a minimum, 3.50 will make it even quicker to wind up and will make traction in first and second iffy at best. 3.70's would eliminate most traction and make shifting out of first gear happen super quick. QUOTE]
I agree.... in the traction part... my motor makes 310 hp at best, but I can easily spin the tires at take off and and first gear is only seconds long
I wanted the 4.10's so that my car doesn't make that drastic change from 1 to 2 gear
First gear with 4.11's in a 700r4 would be like a tow truck, what size stall converter are you running? What kind of lock up device do you utilize? When i wind up to 5800 or more the drop dosent seem that bad, but im running a 2400 t0 2600 rpm stall and i stole tobrokes idea of locking up the coveter in 4th gear only. I cant remember for sure but i beleave that its patc that builds a first gear for the 700r4 that is a slightly reduce ratio somethin g like 2.86 to 1 which would be ideal in my thoughts, but for a complete transmission the want 4800$.I debate on 3.50 verse 3.70, it winds up super fast in first gear with the 3.08's and the 3.06 1st in the 700r4. traction is already at a minimum, 3.50 will make it even quicker to wind up and will make traction in first and second iffy at best. 3.70's would eliminate most traction and make shifting out of first gear happen super quick. QUOTE]
I agree.... in the traction part... my motor makes 310 hp at best, but I can easily spin the tires at take off and and first gear is only seconds long
I wanted the 4.10's so that my car doesn't make that drastic change from 1 to 2 gear
.30 is an awesome gain, but alittle steep at $4800. Tci also builds an electronic 6 speed and i wonder if its not a 6l80, i love the one in my truck, but the 3.46 first combined with 3.73 reaf gear and its next to impossible not to hit the rev limiter when shifting manual.the engine power range is key with t 3.06 1st gear... my redline is 6800 rpm, yes, it goes thru 1st in a blink of an eye, but when I hit 2nd, I m going faster and its not a noticeable drop in power because the engine is higher in the range than a 310 HP shifting at 5000.. besides, the tires are still spinning in 2nd ... I ve seen the tests on that PATC w/smaller ratio 1st.. it made the car faster by about 3/10 sec ...I would love to have one of their 6 speed Autos, but its about $6000 plus an ECM to run it.. .but the gear spacing is perfect
.30 is an awesome gain, but alittle steep at $4800. Tci also builds an electronic 6 speed and i wonder if its not a 6l80, i love the one in my truck, but the 3.46 first combined with 3.73 reaf gear and its next to impossible not to hit the rev limiter when shifting manual.