Help ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

john8746 · 05-28-2002, 03:19 PM

OK here is my question .I have a 69 short bed with 350/350 trbo 2200 stall with a 411 gear and 32's on the rear end. At 65 I turn about 3300 to 3600
r's. what gear do you think it would take to get me down to about 2200 r's. Or should I go with a 700r trans.

**JIMs70GMC** · 05-28-2002, 03:27 PM

To go from 3600 to 2200 RPM you would go from 4.11 to 2.50, ouch!

Big69C20 Toy · 05-28-2002, 03:28 PM

Well i used richmond's gearing calculator and it told me you should be at 2798rpm at 65. now that dont seem exactly right but heck whatever. I'd say if you wanna lower that highway rpm you'd need gearing about 3.03 or something numerically low like that. (it said 2068 with 3.03's) Anyway it's a 700rpm drop, much lower (numerically) gears are very hard to find if they are made at all for your application.

My suggestion is get a nice 700r4 that's built well. you wont suffer any performance losses and you'll get better mpg. Hope this helps some

john8746 · 05-28-2002, 03:52 PM

thanks guys I was afarid that the 700r was the way to go just don't went to spend the $1100.00 for the 700 but looks like the only way to go

john8746 · 05-28-2002, 04:17 PM

Here is the high RPM ride what do you think [ By the way she won
top 25 at the Wildwood show 2nd time out I quit]

Big69C20 Toy · 05-28-2002, 04:50 PM

*drool* ok that's a gorgeous truck. Great work there man.

Longhorn Man · 05-28-2002, 08:05 PM

I don't know what the 32's are in diameter, but this is what I spin with a 28inch tall tire and 3.07 gears.
With a 2200 stall verter, you don't wanna go too low. You need to keep your cruise RPM over the rated stall. If you are always on the freeway, not too much trouble. If you do more in town driving, you need to stay rather conservitive.

*racedvl* · 05-28-2002, 10:17 PM

ANDY!!!!! Go get some gas man!! Or your gonna be walking!!

Longhorn Man · 05-28-2002, 10:19 PM

LOL! It goes down to the M and I can still drive...I'm not scared of walking. I spent 4 1/2 years driving thwese with out a guage at all.
I walked alot.

lux hauler · 05-28-2002, 10:25 PM

What color is that?.........I know it's yellow.....do you have any numbers for it?
Looks sharp!!!

BADA$$69 · 05-28-2002, 10:26 PM

Sharp Truck!!!!

70shortnphat · 05-28-2002, 10:48 PM

My vote is for the 700R trans.

john8746 · 05-29-2002, 07:37 AM

the color 2001 corvette mellennium yellow
Thanks

Burlinator · 05-29-2002, 08:03 AM

yup thats Andy takin pics when he should be watchin the road
watch out here they come

05-28-2002, 03:19 PM	#1
john8746 Registered User Join Date: Nov 2001 Location: Malaga, N.J. Posts: 171	Help ? OK here is my question .I have a 69 short bed with 350/350 trbo 2200 stall with a 411 gear and 32's on the rear end. At 65 I turn about 3300 to 3600 r's. what gear do you think it would take to get me down to about 2200 r's. Or should I go with a 700r trans. __________________ C/10 John N.J.

05-28-2002, 03:27 PM	#2
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	To go from 3600 to 2200 RPM you would go from 4.11 to 2.50, ouch! __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

05-28-2002, 03:28 PM	#3
Big69C20 Toy Livin' it up. Join Date: Nov 2001 Location: Richland, MI Posts: 2,212	Well i used richmond's gearing calculator and it told me you should be at 2798rpm at 65. now that dont seem exactly right but heck whatever. I'd say if you wanna lower that highway rpm you'd need gearing about 3.03 or something numerically low like that. (it said 2068 with 3.03's) Anyway it's a 700rpm drop, much lower (numerically) gears are very hard to find if they are made at all for your application. My suggestion is get a nice 700r4 that's built well. you wont suffer any performance losses and you'll get better mpg. Hope this helps some __________________ -Greg; Sold the 69 C20. It's off to a better home with more love! Now onto the 86 CUCV M1009; K5 blazer with 6.2L diesel, corp 10 bolt axles, Detroit locker in the rear, trutrac front, 3.73 gears, 35" tires.

05-28-2002, 03:52 PM	#4
john8746 Registered User Join Date: Nov 2001 Location: Malaga, N.J. Posts: 171	thanks guys I was afarid that the 700r was the way to go just don't went to spend the $1100.00 for the 700 but looks like the only way to go __________________ C/10 John N.J.

05-28-2002, 04:17 PM	#5
john8746 Registered User Join Date: Nov 2001 Location: Malaga, N.J. Posts: 171	Here is the high RPM ride what do you think [ By the way she won top 25 at the Wildwood show 2nd time out I quit] __________________ C/10 John N.J.

05-28-2002, 04:50 PM	#6
Big69C20 Toy Livin' it up. Join Date: Nov 2001 Location: Richland, MI Posts: 2,212	drool ok that's a gorgeous truck. Great work there man. __________________ -Greg; Sold the 69 C20. It's off to a better home with more love! Now onto the 86 CUCV M1009; K5 blazer with 6.2L diesel, corp 10 bolt axles, Detroit locker in the rear, trutrac front, 3.73 gears, 35" tires.

05-28-2002, 08:05 PM	#7
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	I don't know what the 32's are in diameter, but this is what I spin with a 28inch tall tire and 3.07 gears. With a 2200 stall verter, you don't wanna go too low. You need to keep your cruise RPM over the rated stall. If you are always on the freeway, not too much trouble. If you do more in town driving, you need to stay rather conservitive. Attached Images

05-28-2002, 10:17 PM	#8
racedvl Account Suspended Join Date: Jan 2000 Location: Woodstock, IL Posts: 7,020	ANDY!!!!! Go get some gas man!! Or your gonna be walking!!

05-28-2002, 10:19 PM	#9
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	LOL! It goes down to the M and I can still drive...I'm not scared of walking. I spent 4 1/2 years driving thwese with out a guage at all. I walked alot.

05-28-2002, 10:25 PM	#10
lux hauler Psycho-billy Member Join Date: Jul 2001 Location: about 40 miles west of Cleveland, Ohio Posts: 2,591	john8746 What color is that?.........I know it's yellow.....do you have any numbers for it? Looks sharp!!! Attached Images __________________ '72 C-10 350 w/Lunati Voodoo cam (207/213, .437/.454), Performer intake, 625 Road Demon Jr. and Hooker headers. Support your community, support yourself. Buy local, buy American (or Canadian).

05-28-2002, 10:26 PM	#11
BADA$$69 Walking accident Join Date: Nov 2001 Location: Laurens, SC Posts: 200	Sharp Truck!!!! __________________ Laurens, SC 69 C10 W/350 & 700R4 89 Mustang GT

05-28-2002, 10:48 PM	#12
70shortnphat "See the U.S.A....." Join Date: Apr 2002 Location: Richmond TX. Posts: 269	My vote is for the 700R trans. __________________ 1970 short bed fleetside 1949 all origional chevy 3600 1974 camaro Richmond , Texas(just S.W.of Houston)

05-29-2002, 07:37 AM	#13
john8746 Registered User Join Date: Nov 2001 Location: Malaga, N.J. Posts: 171	the color 2001 corvette mellennium yellow Thanks __________________ C/10 John N.J.

05-29-2002, 08:03 AM	#14
Burlinator Just Another Crazy Canuck Join Date: Dec 2000 Location: Richmond,British Columbia Canada Posts: 1,228	yup thats Andy takin pics when he should be watchin the road watch out here they come __________________ 1985 454/465/205, 38.5x11-16BOGGERS soon to be installed: 14bDETROIT,Edelbrock Performer cam,intake and valve springs,Comp roller tips,MSD HEI



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