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-   -   3:42 Gears and a 700r4 (https://67-72chevytrucks.com/vboard/showthread.php?t=313640)

JMac11 11-07-2008 05:29 PM

3:42 Gears and a 700r4
 
My 84 has a 700r4 with either 2:73 or even worse 2:41, I can pickup a set of 3:42's cheap, are they worth it?

FormerMember 11-07-2008 05:53 PM

Re: 3:42 Gears and a 700r4
 
Quote:

Originally Posted by JMac11 (Post 2963977)
My 84 has a 700r4 with either 2:73 or even worse 2:41, I can pickup a set of 3:42's cheap, are they worth it?

What size tires?

I'd say a bigger jump is required, if you have anything more than a 33" tire. What's the intended use of the truck?

I like 3.73's, 33" and a 700R4... even then, you may be lugging the motor a bit.

JMac11 11-07-2008 06:00 PM

Re: 3:42 Gears and a 700r4
 
My bad on the info.... Want to go to 33's, engine is a copy of the summet 350 horse 350 with Trick Flow heads. This is strictly a mall crawler, daily driver.

kwmech 11-07-2008 06:28 PM

Re: 3:42 Gears and a 700r4
 
With a 33'' tall tire, you could go as deep as a 4.56 ratio. In overdrive the 4.56 will become a 3.28

LUV2XCLR8 11-07-2008 07:29 PM

Re: 3:42 Gears and a 700r4
 
The 700R4/3.42 combo came std for many years in the late 80's
and early 90's Corvettes. So yeh it makes for a good combo :D

(That is my current set-up on the C5 build that I am working on)

FormerMember 11-07-2008 08:36 PM

Re: 3:42 Gears and a 700r4
 
Quote:

Originally Posted by LUV2XCLR8 (Post 2964105)
The 700R4/3.42 combo came std for many years in the late 80's
and early 90's Corvettes. So yeh it makes for a good combo :D

(That is my current set-up on the C5 build that I am working on)

Yep, with a smaller than 33" tire.

I would go 3.73 or 4.10

drbyrdman 11-07-2008 09:03 PM

Re: 3:42 Gears and a 700r4
 
i have 410 with my 700r tranny and love it. great combo

special-K 11-07-2008 09:04 PM

Re: 3:42 Gears and a 700r4
 
Yo`ll be good in Florida,I`d think.I like this combo in a 2wd with shorter tires.I consider 3.42s to be the tallest gear I`d want with o/d.I feel from 3.08s and on are as good as o/d.

Pyrotechnic 11-08-2008 02:33 AM

Re: 3:42 Gears and a 700r4
 
Well I'm from the 2WD camp and I'd consider 3.42's and a 28" tall tire a good combo for a 700R4. That's with 28" tall tires though.

With 33's I would run at least 4.10's.

special-K 11-08-2008 09:09 AM

Re: 3:42 Gears and a 700r4
 
Why not 3.73s?I had a`90 Blazer with 3.08s and 12.50/33s.It was a manual 4spd and was a borderline high.Granny seemed almost high enough to use and sometimes I did.Not nearly as short as any other truck I`ve had.It rolled down the hiway like I had o/d.I wouldn`t want o/d with that combo and don`t see a need.I believe you`d be in & out alot.An automatic would be worse.
I never played off road with that rig.It was the family car.


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