The largest community of 1978-1988 General Motors G-Body cars. Chevrolet Malibu, El Camino, Monte Carlo; Oldsmobile Cutlass, 442, Hurst/Olds; Buick Regal, Century, T-Type, Grand National; Pontiac Grand Am, Grand Prix, LeMans, Bonneville; GMC Caballero

700r4 good with 3.73 rear gears ???

Keep it clean! :)
User avatar
laman1982
Master Mechanic
 
Posts: 101
Joined: Wed Mar 16, 2011 1:33 pm
Location: phoenix az

700r4 good with 3.73 rear gears ???

Postby laman1982 on Thu Jun 09, 2011 1:43 am

700r4 good with 3.73 rear gears or not whats best :bump: ???
1987 Monte Carlo SS
355 SBC
Msd 6a kit
997 heads 9.5:1 CR
Mild comp cam
Hooker headers
700r4 trans go shift kit .

User avatar
kornball426
Royal Smart Person
 
Posts: 1135
Joined: Fri May 29, 2009 7:42 pm

Re: 700r4 good with 3.73 rear gears ???

Postby kornball426 on Thu Jun 09, 2011 2:49 am

there's no answer to the question "what's best?" but if you want to run fairly steep rear gears like a 3:73, and you want to have any kind of highway mileage then you will need overdrive and the 700R4 is a good choice. It's basically a TH350 with an extra gear for highway mileage.
Now I don't know, but I been told it's hard to run with the weight of gold,
Other hand I have heard it said, it's just as hard with the weight of lead.

User avatar
laman1982
Master Mechanic
 
Posts: 101
Joined: Wed Mar 16, 2011 1:33 pm
Location: phoenix az

Re: 700r4 good with 3.73 rear gears ???

Postby laman1982 on Thu Jun 09, 2011 11:55 am

well thats what came stock with my monte 3:73 rear gears i see alot people running 4:10 or 4:56 rear gears i just wanted some opinions ?
1987 Monte Carlo SS
355 SBC
Msd 6a kit
997 heads 9.5:1 CR
Mild comp cam
Hooker headers
700r4 trans go shift kit .

User avatar
9a pilot
Apprentice
 
Posts: 41
Joined: Wed Apr 20, 2011 8:25 pm
Location: 904 area code

Re: 700r4 good with 3.73 rear gears ???

Postby 9a pilot on Thu Jun 09, 2011 1:17 pm

Yeah it's a good street gear. It's an even better street gear for a 2004r. The best all around street gear for a 700 is 3.42.
At least in terms of the gear multiplication in 1st & for cruising in OD.

blonguyss
n00b
 
Posts: 22
Joined: Wed May 25, 2011 10:58 am

Re: 700r4 good with 3.73 rear gears ???

Postby blonguyss on Thu Jun 09, 2011 1:52 pm

Depends on your car and its use and your desires but its a good streetable setup.

User avatar
laman1982
Master Mechanic
 
Posts: 101
Joined: Wed Mar 16, 2011 1:33 pm
Location: phoenix az

Re: 700r4 good with 3.73 rear gears ???

Postby laman1982 on Thu Jun 09, 2011 2:59 pm

STRIP AND STREET
1987 Monte Carlo SS
355 SBC
Msd 6a kit
997 heads 9.5:1 CR
Mild comp cam
Hooker headers
700r4 trans go shift kit .

User avatar
-83MONTESS-
Royal Smart Person
 
Posts: 3668
Joined: Thu Nov 04, 2010 1:51 am
Location: Bellevue, Ohio

Re: 700r4 good with 3.73 rear gears ???

Postby -83MONTESS- on Thu Jun 09, 2011 5:52 pm

laman1982 wrote:STRIP AND STREET

For street and strip a 700r4 with 3.73 gears would be the ideal setup IMO. Get a nice shift kit and you'll be having fun in no time! If your not relying on the gears as much as the torque of the engine to get you moving then you could go with 3.42s or even 3.08s (maybe). But keep that overdrive tranny! You will regret it otherwise :mrgreen:
1983 Monte Carlo SS - 6.6L 400 SBC, TH400, 3:73

User avatar
laman1982
Master Mechanic
 
Posts: 101
Joined: Wed Mar 16, 2011 1:33 pm
Location: phoenix az

Re: 700r4 good with 3.73 rear gears ???

Postby laman1982 on Thu Jun 09, 2011 6:16 pm

-83MONTESS- wrote:
laman1982 wrote:STRIP AND STREET

For street and strip a 700r4 with 3.73 gears would be the ideal setup IMO. Get a nice shift kit and you'll be having fun in no time! If your not relying on the gears as much as the torque of the engine to get you moving then you could go with 3.42s or even 3.08s (maybe). But keep that overdrive tranny! You will regret it otherwise :mrgreen:


thanks for the info! but now i need posi with 3.73 gears do you what cars had them ? that would fit right up with my 87 monte carlo ss??
1987 Monte Carlo SS
355 SBC
Msd 6a kit
997 heads 9.5:1 CR
Mild comp cam
Hooker headers
700r4 trans go shift kit .

User avatar
-83MONTESS-
Royal Smart Person
 
Posts: 3668
Joined: Thu Nov 04, 2010 1:51 am
Location: Bellevue, Ohio

Re: 700r4 good with 3.73 rear gears ???

Postby -83MONTESS- on Thu Jun 09, 2011 6:18 pm

laman1982 wrote:
-83MONTESS- wrote:
laman1982 wrote:STRIP AND STREET

For street and strip a 700r4 with 3.73 gears would be the ideal setup IMO. Get a nice shift kit and you'll be having fun in no time! If your not relying on the gears as much as the torque of the engine to get you moving then you could go with 3.42s or even 3.08s (maybe). But keep that overdrive tranny! You will regret it otherwise :mrgreen:


thanks for the info! but now i need posi with 3.73 gears do you what cars had them ? that would fit right up with my 87 monte carlo ss??

Look mainly for 85-88 Monte SS's. Thats where I got mine and they are less rare than alot of the other Gbodies that had them.
1983 Monte Carlo SS - 6.6L 400 SBC, TH400, 3:73

User avatar
patmckinneyracing
Royal Smart Person
 
Posts: 2111
Joined: Sun Jan 18, 2009 9:38 pm
Location: San Antonio, TX

Re: 700r4 good with 3.73 rear gears ???

Postby patmckinneyracing on Thu Jun 09, 2011 6:46 pm

My rear end came from an 86' monte ss and has the auburn posi with 3.73 gears. Swapped out the stock ring and pinion for a set of Yukon 3.73's since the stock set chipped a tooth.

I have a 700r4 with a 2500 stall. The car hooks great and accelerates like a bat out-a-hell.
Image

User avatar
dogshit
Royal Smart Person
 
Posts: 2148
Joined: Tue Nov 11, 2008 9:21 pm
Location: Dayton, OH

Re: 700r4 good with 3.73 rear gears ???

Postby dogshit on Thu Jun 09, 2011 8:27 pm

If you have MCSS why step back to 700-r4? It's heavier & has heavier parts to try to rotate so it soaks up a little more power and fuel to run, has too low of a first gear for a powerful motor in a light gbody, has a less than ideal gear change from 1st to 2nd and does not have as tall of an overdrive. Plus you have to have your drive shaft cut to make the conversion work and the MCSS already came with the 200-4r. On top of that they cost the same to build up to withstand the same power.

I know back in the day the garden variety 700-r4 was a little stronger than the garden variety 200-4r and many shops didn't know how to build a performance 200-4r but sheesh we have had the internet a long time now seems like the info should have made its way around.

PS. Pat have you ever got a time slip on a bat out of hell yet?
In the muscle car era if it had a small block it was your moms car. When you turn your car on does she return the favor? Life's short enjoy your ride. Hybrid burns gas & rubber. Check out my photo album.

87 Olds 442, Blue on Metalic Silver with 275/60/15 drag radials on 15x8 442 wheels, 10-1 509ci Cadillac, 800cfm Q-jet, Performer intake, Street ported heads, 230@50 518 lift cam, Headers, Built 200-4R, 2800 stall lock-up converter, Electric fans & in-tank fuel pump, Factory AC, All factory guages work including tach & oil temp with the 509, Functional Hurst hood & rear spoiler, 36mm hollow sway bar, 3.42 posi 8.5, 17.0 mpg hwy, sold :(

87 Buick Grand National, Tuxedo Black w Chrome 275/50 drag radials on 15x8 GN wheels, 231 Buick V6, TE-60 turbo, Stretch intercooler, 42.5lb injectors, 3" downpipe, 3000 stall lock-up converter, Meth/water injection, 3.42 posi 8.5, 22 mpg hwy, original owner ~ Goal for both cars 11.8 ETs / 115 mph in the quarter reliably on pump gas

User avatar
anakputa
G Body Guru
 
Posts: 482
Joined: Fri Nov 27, 2009 12:58 pm

Re: 700r4 good with 3.73 rear gears ???

Postby anakputa on Thu Jun 09, 2011 9:20 pm

I had a 700R4 in my car with 3.73's works great!! But I now have a 5 speed which is better :mrgreen:
84 Buick Regal with 355 Chevy, 5 speed and 3.73's
Automotive Manufacturer Field Engineer - ASE Master and L1 Certified

User avatar
CHRIS.O
Moderator
 
Posts: 1493
Joined: Thu May 26, 2011 9:19 pm
Location: MI

Re: 700r4 good with 3.73 rear gears ???

Postby CHRIS.O on Thu Jun 09, 2011 9:24 pm

I think 3.73 with an overdrive are about the max you would want for a car that is driven daily at highway speed.
When in doubt, tach it out.

User avatar
patmckinneyracing
Royal Smart Person
 
Posts: 2111
Joined: Sun Jan 18, 2009 9:38 pm
Location: San Antonio, TX

Re: 700r4 good with 3.73 rear gears ???

Postby patmckinneyracing on Thu Jun 09, 2011 10:13 pm

When it comes to the gear change from 1st to 2nd, its not as dramatic as people say it is. People are relying on the "numbers" without having the experience of driving one. The first gear of the 700r4 easily compensates for the minor gear drop from 1st to 2nd compared to the tighter gear ratio from 1st to 2nd in the 200-4r. It's mostly a matter of opinion, when I calculated the costs of building either one up to par, the 700r4 was $600 cheaper than the 700r4. Nowadays, the parts for the 700r4 are parts coming from the 4L60. Over half the parts that went in to my trans were labeled 4L60 and the parts were much cheaper compared to the same parts for a 200-4r. I managed to get the trans, correct driveshaft, and shifter from a buddy for $150, so it wasn't as costly for me as it may be for others.

Hasn't been a thousand miles yet, so no I have not gone to the track. I'm just telling you it accelerates like a bat out of hell and if you don't believe me than you can just sit back and wait till I go to the track. Ask other members on this forum, Jbreau, jrm81bu, and others run the 700r4 with great success on the street and track.
Image

User avatar
laman1982
Master Mechanic
 
Posts: 101
Joined: Wed Mar 16, 2011 1:33 pm
Location: phoenix az

Re: 700r4 good with 3.73 rear gears ???

Postby laman1982 on Thu Jun 09, 2011 11:02 pm

thanks for all the replys guys real helpfull i will find a 3:73 posi and slap her on i already have the stock 3:73 but i dont think its posi ?
1987 Monte Carlo SS
355 SBC
Msd 6a kit
997 heads 9.5:1 CR
Mild comp cam
Hooker headers
700r4 trans go shift kit .

Next

Return to General Discussion

Who is online

Users browsing this forum: Majestic-12 [Bot]