[malibu_mike69]

just wondering wut every 1 thinks about the 700-R4?? i am lookin to put more gear in my car but i still wanna keep it 100% streetable. i am young so i cant afford all of the gas that it would gussel if i put a three speed in it. i am looking to be able to drive to my not so local drag strip and make 10 runs and still be able to drive it home on the same tank of gas. i was thinking about putting in the 700-R4 with either a 3.73 or a 4.10 (note i am planing on using the 7.5 10bolt so 3.90's are not a option) with a 27"-28" tall tire. also i am running a 305 that will hopefully be getting a 100-125 shot of nitrous. so knowing all that info will that tranny be good/strong enough if i build it up and also what converter would u suggest i use (i found that my happy spot right now with the 2.73 gears is around 2200-2500 rpm). if u can help me Hutch this would be greatly apprechiated


thanks
mike

 

[Tuff Guy]

I think the gear selection you are thinking of is alittle stiff. I would consider a 3.23 or 3.42.Since the first gear ratio is 3.07 it will give you alot of reduction in first.

There are some ups & downs to 700R4s

One of the down falls to the 700R4s in my opinion is the ratio change from 1st to 2nd. It is quite a spread.

I build alot of these for street/race applications w/great luck

I also build alot of 2004Rs for street/race w/great success.They have better ratio splits than the 700R4s do.

Good Luck

 

[Hutch]

The 700R4 would be a great choice for what your doing and with the 305 you will have great reliability.
To build one properly with a good converter may be a little expensive and fuel economy alone will take quite a few years to pay for itself.

There are numerous converters to choose from, I would suggest something in the 3000+ range with a lockup. That will make the car fun to drive and give give you the economy on the highway.

Hope this helps,Hutch

 

[NPS Nova]

Not to hi-jact this thread, but TUFF GUY can you point out some more on the 200R4 trani. I'm looking at one for my street rod. Nothing fancy 300 hp 350 that has a TH350 in it now with 3.42 rear. And NO CONVERTER stall, like 1200. Just looking for a easy swap and the 200's are easier that 700's. Thanks, John

 

[Tuff Guy]

2004R

The gear splits on a 2004R are this.

1st - 2.74
2nd - 1.57
3rd - 1.00
4th - 0.67

The durability of a 2004R is very good & can take some pretty good power

Also w/the lock up torque converter you have the option of a stall speed & can use the lock up to cruise.This will give you the best of both worlds.

The only thing to worry about is the T.V. (throttle valve) cable,which must be hooked up.This is what controls line pressure instead of a modulator.

The best cores to start w/are 85' to 90'

Good Luck

 

[malibu_mike69]

thank u all this helps me out greatly



thanks mike

 

[NPS Nova]

Me too. I was looking for a Grand National Trani. Thanks, John

 

[malibu_mike69]

k i am thinking about goin with a ford 9" with a 3.60:1 ratio(richmand gear) i kno that the first gear is real steep and the jump is big as well so thats why i wanted to go with a little steeper gear because of the jump. any thoughts???




thanks
mike

 

[Kwikford]

sorry for hijacking this thread...

anybody got 200R4 trans near me? [ Philadelphia Pa area ] real cheap... :roll: since most of the internals will be upgraded.

 

[malibu_mike69]

any1????????





thanks
mike

 

[Hutch]

k i am thinking about goin with a ford 9" with a 3.60:1 ratio(richmand gear) i kno that the first gear is real steep and the jump is big as well so thats why i wanted to go with a little steeper gear because of the jump. any thoughts???




Mike ,that sounds like a great combination. Try it out and let us know how it works.

Take care ,Hutch

 

[malibu_mike69]

ok will do hutch it wont be till next spring i got in to a accident with my car so i have a little more work then what i accully had planed but shit happens so i will get back



thanks a bunch hutch

mike

 

[Six_Shooter]

Tuff Guy, can you post the ratios of the 700R4? I don't think it makes a difference, but if it does, I'm specifically wondering about the small case (small corporate bolt pattern 2.8, I4).

I'm switching from a T5 to 700R4 for sonsistancy and ability to launch in boost with less shock to the drivetrain.

At this point I'm switching to a 3.42 gear from a 3.73 because my 1st gear was WAY too short, with the T5, so I'd like to make sure that it will be enough gear for the 700.

TIA

 

[Tuff Guy]

700R4 ratios

1st - 3.06
2nd - 1.62
3rd - 1.00
4th - .70

Hope this helps

 

[Six_Shooter]

Re: 700R4 ratios

1st - 3.06
2nd - 1.62
3rd - 1.00
4th - .70

Hope this helps

Thanks :-D

 

[mrpuppup]

i have a 1989 gmc truck the trans went out no 2nd+3rd. i found a trans at a good price but it can out of a 1985. will it work in my truck and what is the difference in the trans. thank you for your help

 

[Hutch]

2 things to check on the 89 trans first. Make sure the TV cable is working , not stuck and not disconnected. If thats ok check the governor gear. If thats ok then its junk.

The 85 will fit but the lockup solenoid will have to be changed from the 89 to the 85 unit and possiblt the speedo arrangement will need work (electronic from cable type).


Hutch