3.42 gears and shift kit

[band77one]

Can anyone recommend a good shift kit to put into a 700-r4 tranny? and i also have limited slip 3.08 geared rear, and thinking about 3.42 gears, can anyone give me some feedback possibly thanks.

[Tru2Chevy]

Before you ask for gear recommendations, you gotta tell us what your goal is. Is the car your DD? Do you see lots of highway travel? Drag racing?

- Justin

[band77one]

i see taking it to the track, possibly some street races. maybe a couple of trips to the shore in the summer but not much more highway then that

[Tru2Chevy]

I would go with 3.73s or 4.10s, depending on how far you plan on taking your mods, and how much you care about going fast at the track. With 3.73s and a stock size tire, you'll be turning about 2565 RPM at 75 mph. With 4.10s it would be 2820 RPM at 75.

- Justin

[Savage_Messiah]

4.10s FTW... but I may have a set of 3.42s for sale.

[project89]

2850 dosent seem right for 4:10's if i remeber right 65 was like 2,400 in the rs @ 75 then again ive got big tires

[Tru2Chevy]

2850 dosent seem right for 4:10's if i remeber right 65 was like 2,400 in the rs @ 75 then again ive got big tires

http://www.fbody.com/calc.htm

- Justin

[Savage_Messiah]

the calc is off but 2850at 75 sounds about right, it may be a touch lower than that but right in the area.

[Teds89IROC]

I have 3.42's and it really woke my car up. I had 2.77's before. I was gonna go with a transgo shift kit for my car, but I may not bother and hold out for a T56 swap sometime in the future :-D

~Ted

[project89]

the tach i got must be off then caus elast night a@90mph it read like 3,100 rpm
with 4:56's

[Brando56894]

wow 2.77s :rofl:

[Savage_Messiah]

I have 3.42's and it really woke my car up. I had 2.77's before. I was gonna go with a transgo shift kit for my car, but I may not botehr and hold out for a T56 swap sometime in teh future :-D

~Ted

Go 4.10s......

[project89]

4:10's+ and v6 are great

[Tru2Chevy]

the tach i got must be off then caus elast night a@90mph it read like 3,100 rpm
with 4:56's

What size tire were you running on?

- Justin

[project89]

umm 255 55 zr-16,there really not that tall of a tire,btw cheapo pep boys tach sunpro i think

[Tru2Chevy]

That's a 27" tall tire, as compared to a 25.6" tall tire.

In overdrive, with that gear and tire @ 90 mph you should have been turning approx. 3,575 RPM. Do you have the correct speedo gears in your car for the gears and tire size that you are running? 3100 RPM works out to about 78 mph.

- Justin

[project89]

yeah we have the right speedo gear,so my tach is off 400 rpm or so

(dam been reving the motor higher then i thought we were)

[Teds89IROC]

Go 4.10s......

I have 4.10's sitting in my garage for a 10 bolt, but I'm not sure which 10 bolt

~Ted

[Teds89IROC]

wow 2.77s :rofl:

yea, they were so small I could tap the gas lightly and hear the rpm's rise a bit and not move anywhere lol. Good highway gears, but **** off the line and whipping around town.

~Ted

[Tru2Chevy]

I have 4.10's sitting in my garage for a 10 bolt, but I'm not sure which 10 bolt

~Ted

You should measure them to see....

- Justin

[Teds89IROC]

What am I measuring to find out?

~Ted

[Tru2Chevy]

Measure the ring gear to see if it's a 7.5" or 8.5"

- Justin

[98tadriver]

shift kits are very nice

I have a NEW corvette servo if you are interested 30.00 improves 1-2 and 3-4 shifts firms em up

[primo]

I like to get 4.10s for my 9bolt, no luck yet :cry:

[Tru2Chevy]

I like to get 4.10s for my 9bolt, no luck yet :cry:

Try here: http://www.ring-pinion.com

- Justin

[IcemanSS]

For a 3rd gen, if you wanna keep it like a dd, 3.73's, and I had the TCI shift kit in mine with a 3500 stall converter, also from TCI.

[Tru2Chevy]

Nothing wrong with 4.10s in a DD, as long as it's not gonna be all highway miles :)

- Justin

[primo]

They only have up to 3.73, that is the Yukon brand, good gears.

Thanks,

[project89]

www.9bolt.com

edit
nm the site is gone they used to have everything fro 9bolts new posi's,clutch kits,new/used gears,housings