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#1 |
Embrace the Redneck
Join Date: Jan 2004
Location: Cabot, AR
Posts: 1,334
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advantages of this combo??
I did the raise tire up rotate 20 count shaft technique and figured a little over 37.25 turns on the shaft and that makes a 3.73 rear if i did my research right.
I've got a 3 speed from a 67 inline six and a 350 bored .060 with an edle #1405 on an edle preformer intake. what kind of MPG or git up and go and other what knot should i get? any advantages? any Disadvantages? thanks sswj
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'01 Camaro Son, you just can't get there from here... |
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#2 |
He's got mean nasty FANGS!
![]() Join Date: Dec 1999
Location: Rockwell, NC
Posts: 6,509
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That should be a fun combo, not very highway friendly though... Depnding on engine specs etc. it'll likely hurt gas mileage vs a 3.07 rear... It all depends on what you want ot use the truck for... If its a mostly in town driver, 3.73s probably wont make much difference on gas mileage (that can be argued in many different theories tho, some based on engine setups, thermal effenciency etc.) on the highway they will flat out kill you mileage and turn really high RPMs at any highway speed... It's hard to say what kind of gears you'd need/want without knowin what the uses for the truck are...
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2004 K2500 Burb 1999 C3500 1985 Cutlass Supreme 1969 C-10 1967 C-10 Panel josh@67-72chevytrucks.com |
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#3 |
State of Confusion!
![]() ![]() Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 46,901
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Like Josh said it's hard to tell. With a 350 and that tranny/ rear end you'll have plenty of git and go around town. Highway it'll hollar at you alot. Probaly over 3000 at 70.
Mileage will probably be about the same in town and highway...9-10....you might even see a bit better MPG for in town than you do on the road....as long as you don't drive like Andy and I (Hey Longhornman ![]() With a 3.07 rear you'll cruise nice on the road, in town you should still have good pickup, but where you'll lack is low grunt power. If you plan to pull with it you'll find that the 3 speed is a tall first gear and without a low rear like the 3.73 or above it'll load up on you and get rough on your clutch and flywheel.
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Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! Last edited by Palf70Step; 03-29-2005 at 10:52 PM. |
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#4 |
Got Light Emitting Diode?
Join Date: Apr 2004
Location: Newberg, OR
Posts: 2,485
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i believe the 3rd gear is 1 to 1 like the 4th gear in a sm465, th350 and what not. high way you will be at 4 grand pushin 90 with 3.73. trust me i know. every one seems to get 8-14mph my guess (and it is a guess) you will be in the 10-12 range. but there are those freaks out there that get 18 f....n b...s... grrr.........
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's ![]() 1993 Cherokee work ride/weekend wheeler |
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#5 | |
He's got mean nasty FANGS!
![]() Join Date: Dec 1999
Location: Rockwell, NC
Posts: 6,509
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Quote:
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2004 K2500 Burb 1999 C3500 1985 Cutlass Supreme 1969 C-10 1967 C-10 Panel josh@67-72chevytrucks.com |
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#6 |
Got Light Emitting Diode?
Join Date: Apr 2004
Location: Newberg, OR
Posts: 2,485
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oh so you just exadurate(sp?) to make all of us envious :mp:
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's ![]() 1993 Cherokee work ride/weekend wheeler |
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#7 |
He's got mean nasty FANGS!
![]() Join Date: Dec 1999
Location: Rockwell, NC
Posts: 6,509
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yep i have to exagerate that extra .4 to impress teh ladies! (if it makes ya feel better before i rebuilt the carb the previous owner of my maro messed up i used 25 gallons of gas in 40 miles!)
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2004 K2500 Burb 1999 C3500 1985 Cutlass Supreme 1969 C-10 1967 C-10 Panel josh@67-72chevytrucks.com |
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#8 |
Got Light Emitting Diode?
Join Date: Apr 2004
Location: Newberg, OR
Posts: 2,485
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.4 is alot man
![]() thats 1.6mpg or .625gpm
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's ![]() 1993 Cherokee work ride/weekend wheeler |
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#9 |
He's got mean nasty FANGS!
![]() Join Date: Dec 1999
Location: Rockwell, NC
Posts: 6,509
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(liz's monkey is ignoring me again tonight btw
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2004 K2500 Burb 1999 C3500 1985 Cutlass Supreme 1969 C-10 1967 C-10 Panel josh@67-72chevytrucks.com |
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#10 |
Got Light Emitting Diode?
Join Date: Apr 2004
Location: Newberg, OR
Posts: 2,485
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(dont let it poo on those tapes) when i stop blowing my money i am going to look into a 200r4.
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's ![]() 1993 Cherokee work ride/weekend wheeler |
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#11 |
He's got mean nasty FANGS!
![]() Join Date: Dec 1999
Location: Rockwell, NC
Posts: 6,509
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I never did the math on the mileage the maro got... i jsut looked at the holin my wallet where there was $50 bill previously and cried... 200r4 would be a good lil tranny to have, I think im gonna toss a t56 in the maro, with teh 3.73s thats like cruise at under 2k rpm @ 90...
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2004 K2500 Burb 1999 C3500 1985 Cutlass Supreme 1969 C-10 1967 C-10 Panel josh@67-72chevytrucks.com |
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#12 |
Got Light Emitting Diode?
Join Date: Apr 2004
Location: Newberg, OR
Posts: 2,485
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go auto, you dont want to shift in every ride you have. t56 is a 6 speed right? arent 5th and 6th both OD gears? (man we really hijacked this thing(thanks for keeping the tapes clean))
NEE, NEE
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's ![]() 1993 Cherokee work ride/weekend wheeler |
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#13 |
He's got mean nasty FANGS!
![]() Join Date: Dec 1999
Location: Rockwell, NC
Posts: 6,509
|
lol yes we did! yeah its dual OD 6spd, .7 and .5 5th/6th. should be fun! My problem is I like shifting gears.... (and once the truck and maro are done i'm gonna buy somethign econobox like so the 12mpg wont eat me alive, the monkey cant figure out how to open the ziploc so far!)
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2004 K2500 Burb 1999 C3500 1985 Cutlass Supreme 1969 C-10 1967 C-10 Panel josh@67-72chevytrucks.com |
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#14 |
Registered User
Join Date: Feb 2005
Location: Bay Area, California
Posts: 995
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Highjack alert...
Im in the same boat there. I feel like Im ride'n her too hard when I hit 70. And I hate going under 80. ![]()
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1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree |
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#15 |
Got Light Emitting Diode?
Join Date: Apr 2004
Location: Newberg, OR
Posts: 2,485
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you could go with an external OD ($$$)(not sure if that works on a stick actualy)
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's ![]() 1993 Cherokee work ride/weekend wheeler |
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#16 |
He's got mean nasty FANGS!
![]() Join Date: Dec 1999
Location: Rockwell, NC
Posts: 6,509
|
If it's a stock 307/3spd they all got 3.73s unless ordered otherwise, 350s got 3.07, big blocks got 3.54 and all sixes got 3.73. So you likely have a 3.73. easiest solution would be a 3.07, but with teh 3.07 you may find your lugging it a lil takign off with a load etc. but I don't think it'd be too bad...
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2004 K2500 Burb 1999 C3500 1985 Cutlass Supreme 1969 C-10 1967 C-10 Panel josh@67-72chevytrucks.com |
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#17 |
He's got mean nasty FANGS!
![]() Join Date: Dec 1999
Location: Rockwell, NC
Posts: 6,509
|
The gear vendors works on any trans, manual or auto.
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2004 K2500 Burb 1999 C3500 1985 Cutlass Supreme 1969 C-10 1967 C-10 Panel josh@67-72chevytrucks.com |
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#18 | |
Registered User
Join Date: Feb 2005
Location: Bay Area, California
Posts: 995
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Thanks, they do make them, but there would be a second stick, or a button to push. Ick.
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1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree |
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#19 |
He's got mean nasty FANGS!
![]() Join Date: Dec 1999
Location: Rockwell, NC
Posts: 6,509
|
A 3.07 rear would work pretty good... help in highway RPMs and MPG... Or do the combo I had in my old caprice, 305/700r4/2.56 rear! 100mph @ 1800rpm
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2004 K2500 Burb 1999 C3500 1985 Cutlass Supreme 1969 C-10 1967 C-10 Panel josh@67-72chevytrucks.com |
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#20 |
Embrace the Redneck
Join Date: Jan 2004
Location: Cabot, AR
Posts: 1,334
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My pickup will mainly be used for intown, once a year camping trips, pulling the boat and RV i wish i had and to show off here in town and for hauling. I eventually want a 4 speed tranny. It's got the 11" disc in the clutch system.
all of the other OTR driving we'll be doing is with the goobermobile ('99 Plymouth Grand Voyager SE with the 3.3L in it), i.e. the 7-9 hour trip from N Missouri to my home Central Arkansas. or other vacations. But i want my truck to be able to do some Haulin and some a** haulin. I want to be able to hang with the local youth (seing as i'm a youth pastor) with my "really 'bad' truck") I want the kids in my youth to say, "my youth pastor has this really fast and cool truck" I want to have a couple of the old people in my chruch say "that kid's truck is way too loud" and my pastor reply, "I know that's why he's my youth pastor" you know so on and so fourth. SO pretty much i'm good, i should be in good shape so long as i don't have to ride the highway much at all. oh, btw I'll never go Auto, standard is the only way for me. even my wife want's the Van to have a sitck shift, hehe! I'm expecting about 10 MPG and a little more when i go full synthetic oil (I can't beleve that i just said that) after about 8,000 on the spedo. I mean what can you haul with 23 MPG my .o2 sswj. thanks guys
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'01 Camaro Son, you just can't get there from here... |
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#21 |
Embrace the Redneck
Join Date: Jan 2004
Location: Cabot, AR
Posts: 1,334
|
one more question, what will it top out at? 100, 105?? how fast will i go?
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'01 Camaro Son, you just can't get there from here... |
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#22 |
Registered User
Join Date: Jun 2004
Location: Gainesville, Fl
Posts: 382
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whitesswj I have the same exact setup on my K-10 (except for a 400 horse 327...:-) anyway with the 3-speed and 3.73 I get about all the freakin torq I could ever want!! and as far as Miles Per Gallon...its more like Gallons Per Mile...ha ha I get about 13 actually better than I thought I would. And I have had her at 123mph at 4200 RPM dont ask me how.
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Man I need another 67-72!!! ![]() |
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#23 |
Embrace the Redneck
Join Date: Jan 2004
Location: Cabot, AR
Posts: 1,334
|
what kinda horses am i getting from my setup if anyone has an idea?
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'01 Camaro Son, you just can't get there from here... |
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#24 |
Registered User
Join Date: Feb 2005
Location: Bay Area, California
Posts: 995
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Can the rearend be changed by replacing the guts inside? Or does the whole thing need to be replaced?
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1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree |
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#25 |
Registered User
Join Date: Jun 2004
Location: Gainesville, Fl
Posts: 382
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yes you can just change the inside of the rear end to change the ratio..very easy!
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Man I need another 67-72!!! ![]() |
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