The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 05-30-2013, 08:06 PM   #1
dzwestwindsor
Registered User
 
Join Date: Apr 2013
Location: Princeton, NJ
Posts: 40
Question Questions about driving stick shift- 4 speed on floor

Hello,

I have a 71 C20 with a 4 speed on the floor. I have had this vehicle for only a short period of time, with no previous stick shift driving experience. But I managed to make it home from the seller and I've taken it around the block a few times. However, I have many questions about driving stick in this vehicle (Please bear with me if some of these questions are pathetic)

1. If I'm starting up in gear 2, how long does it usually take for the driver to completely release the clutch after the catch point? I'm finding myself depressing the clutch for at least a few seconds, otherwise I stall or jump forward. But then, I'm afraid that I'm on the clutch too long, damaging the clutch.

2. If I'm starting in 2nd, what should my RPMs be when the clutch comes in contact?

3. It's acceptable to start in 2nd gear, right?

4. From 2nd gear, at what RPM should I shift to 3rd gear? Also, what is the lowest RPM I can maintain in 2 or 3 before I need to downshift or put in the clutch?

5. When the vehicle is moving, it seems that it's not possible to put it in 1st, because it just makes a loud clicking noise. Why is this?

If anyone has any other tips or suggestions, I would greatly appreciate it. Thank you so much.

-David
dzwestwindsor is offline   Reply With Quote
Old 05-30-2013, 08:23 PM   #2
Wootdog
Senior Member
 
Wootdog's Avatar
 
Join Date: Jan 2001
Location: Virginia Beach, Va, USA
Posts: 1,677
Re: Questions about driving stick shift- 4 speed on floor

googled it for you. This is one of many training articles on driving a manual.
Kerry

http://www.wikihow.com/Drive-Smoothl...l-Transmission
__________________
1969 Chevelle
1990 IROC Z Convertible
2002 Silverado LT
Wootdog is offline   Reply With Quote
Old 05-30-2013, 08:24 PM   #3
Codez67Chevy
Registered User
 
Codez67Chevy's Avatar
 
Join Date: Nov 2012
Location: Spanish Fork Ut
Posts: 370
Re: Questions about driving stick shift- 4 speed on floor

All I have to say is just drive the truck as much as you can to get used to it. Every truck is different. Every manual tranny is different. I've drivin lots of manual trucks and everyone was completely different. One reason why 1st gear grinds is because its a very low gear so you need to be going really so to get it in that gear. Also depending on your gear ratio in your rear end. 1st gear might be so low you won't even use it. My truck is a 4spd and I don't even use it to start out with unless I'm pulling a load. So on that note just go out and drive it!!!! That is the only way my friend. Good luck with your new ride and please post some picks. We gotta see what it looks like!!
__________________
" Dead Pumpkin" 67 Chevy short bed, 292 I6, 4spd manual. Fan of the "Slant Noses".

93' Toyota pickup 2WD 2dr and 32mpg. Daily driver. 300k+

Members I've met...
Mister-B
Codez67Chevy is offline   Reply With Quote
Old 05-30-2013, 08:27 PM   #4
Codez67Chevy
Registered User
 
Codez67Chevy's Avatar
 
Join Date: Nov 2012
Location: Spanish Fork Ut
Posts: 370
Re: Questions about driving stick shift- 4 speed on floor

Also just listen to the engine when your in gear you don't want to shift too early or at too high of a RPM. You'll find the sweet spots once you get used to it.
__________________
" Dead Pumpkin" 67 Chevy short bed, 292 I6, 4spd manual. Fan of the "Slant Noses".

93' Toyota pickup 2WD 2dr and 32mpg. Daily driver. 300k+

Members I've met...
Mister-B
Codez67Chevy is offline   Reply With Quote
Old 05-30-2013, 08:47 PM   #5
Mike C
Registered User
 
Mike C's Avatar
 
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,724
Re: Questions about driving stick shift- 4 speed on floor

First gear is unsynchronized in a granny 4 speed. You need to be at a dead stop to engage. Just like reverse. 2nd gear is perfect for starting off in on the road 99% of the time. It is a 3.5:1 ratio (my CJ-5 is 3.0:1 for comparison, 1st gear in its 3 speed.)

Practice, practice, practice, then practice some more. See how low you can let the clutch out without killing it. That's about the right amount. Slip the clutch as little as possible and it lasts the longest. I got 252,000 miles on the original clutch in my Jimmy.
__________________
44 Willys MB
52 M38A1
64 Corvette Coupe
68 Camaro 'vert LT1 & TH700
69 Z/28 355 12.6's @110
69 Chevy Short Step 4 1/2"/7" drop
72 Jimmy 4WD 4spd 4" & 35's
02 GMC 2500HD 4x4 Duramax
Mike C is offline   Reply With Quote
Old 05-30-2013, 08:50 PM   #6
Bill Houghton
Registered User
 
Join Date: May 2013
Location: Sebastopol, CA
Posts: 13
Re: Questions about driving stick shift- 4 speed on floor

About not being able to shift into first when the truck is moving: most older manual transmissions did not have synchronizers on first gear. You want to be completely stopped to shift into a non-synchro first (well, in theory, you can shift into a non-synchro gear by double-clutching and careful matching of rpm's, but the reality is you stand a good chance of chipping a gear; I know. And it's especially easy to chip a gear if the transmission uses helical rather than straight-cut gears; by the early 70s, helical gears [which are quieter and smoother] would have been common).

A high percentage of the older - 1960s and older - four-speed transmissions were "farm geared," with first gear low enough to pull the tractor out of the mud when it got stuck, or haul an overloaded livestock trailer*. Early 70s were kind of a transitional period for trucks; depending on your final drive, your truck may be farm geared or economy/sports-oriented.

Try it: stop the truck, put it in first gear, and start out. If you're hearing the tranny working really really hard and the motor's going fast just about right away, it's probably farm geared.

There's a lot of art to driving a manual transmission. I learned to drive at the time that it was becoming no longer standard to teach kids to drive a stick; but I grew up in a car family, and we were expected to know. You'll learn. Read about it, think about it, be aware that you mustn't ride the clutch, and that, if you're having to feather the clutch for a block to get the motor/truck comfortable, it's too high a gear. But don't overthink it; just learn to feel when it's right.
-------------
*Heck, even a lot of the three-speeds were farm geared. The 1947 Studebaker half-ton Dad had at the gas station was geared so low that you couldn't get across an intersection without having to shift out of first, and by 50 mph in third gear, that old truck was wrung out. Great truck, though.
Bill Houghton is offline   Reply With Quote
Old 05-30-2013, 10:25 PM   #7
lap15
Registered User
 
Join Date: Jun 2011
Location: Womelsdorf,PA
Posts: 93
Re: Questions about driving stick shift- 4 speed on floor

Don't worry about formulas or RPM's....practice in an empty parking lot and listen to the engine, the engine sound will tell you when to shift. After you get the feel of your truck, you will LOVE the whine sound it makes. Having a stick is awesome!
lap15 is offline   Reply With Quote
Old 05-31-2013, 02:28 AM   #8
Alex V.
Registered User
 
Alex V.'s Avatar
 
Join Date: Mar 2013
Location: Campbellsville, KY
Posts: 888
Re: Questions about driving stick shift- 4 speed on floor

Agree with everything said above. From the sound of it your transmission has an unsynchronized 1st gear (i.e., it isn't designed to be shifted into 1st while the truck is moving - pretty much a standing-start or uphill-takeoff pulling gear). (Note: This type of transmission is commonly referred to as a "granny low" 4-speed.) I know on my Suburban's tranny, the gap between 2nd and 3rd is much wider than between 3rd and 4th so it's necessary to stay in second longer than what feels natural to make the shift. I don't judge my shift points by RPM and never have, so just drive it and get a feel for the comfortable shift points; you don't have to keep it wound like a 3-day clock, but if the engine is lugging (RPM's are too low to generate any power and the engine struggles to accelerate) after letting the clutch out just move your shift speed up a bit. It should come rather quickly and after that it'll stay with you from now on.

Good luck and have fun with it!
__________________
Alex V.
------
1967 C10 Suburban, 350/NP435, Green/Green, PS, PB, HD cooling, charging, shocks, and springs.

1985 GMC C3500 SRW, Sierra Classic, 454/TH400, white/blue.
Alex V. is offline   Reply With Quote
Old 05-31-2013, 05:32 AM   #9
JointTech
Registered User
 
JointTech's Avatar
 
Join Date: Feb 2012
Location: Mission Viejo, CA
Posts: 1,856
Re: Questions about driving stick shift- 4 speed on floor

you just have to feel it. like was said every engine/transmission/clutch is different. Drive it. Get used to it. Practice taking off from a steep hill without rolling back!!
I used to have to set the hand brake on an old dump truck to take off from a hill without running over the idiot behind me.

A lot of transmissions that grind going into first if you just put it in second and then to first it sometimes helps syncronize and slip in.
__________________
72 C20 Long Bed
SB350 TH400 14 bolt rear end
Extremely boring build thread
JointTech is offline   Reply With Quote
Old 05-31-2013, 05:44 AM   #10
mikey531
Senior Member
 
mikey531's Avatar
 
Join Date: Jul 2009
Location: Exeter, NH
Posts: 794
Re: Questions about driving stick shift- 4 speed on floor

When my son was learning I took him to a cemetery, I had hills, intersections and no traffic. Starting on a hill takes practice and finding the sweet spot to hold you.
mikey531 is offline   Reply With Quote
Old 05-31-2013, 06:13 AM   #11
special-K
Special Order

 
special-K's Avatar
 
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,852
Re: Questions about driving stick shift- 4 speed on floor

There's actually just a bit of clutch slipping necessary to get the truck going smoothly. Listen to the engine. If it's revving and not pulling you need to move it out a bit faster.On a flat surface you can practice letting the clutch out without using any throttle. Just practice how that works and the rest will come to you
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed"

GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project)
GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling)
Tim

"Don't call me a redneck. I'm a rough cut country gentleman"

R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~
special-K is offline   Reply With Quote
Old 05-31-2013, 08:22 AM   #12
camrycurt
Registered User
 
camrycurt's Avatar
 
Join Date: Jul 2010
Location: Leesburg, VA
Posts: 420
Re: Questions about driving stick shift- 4 speed on floor

Agree with everything said above. In the SM465, granny 1st and reverse are unsynchronised so you have to be at a dead stop to shift into either one of those. Both of those gears are so low that I just lift my foot off the clutch at idle and the truck starts to move. If I give it any gas at all starting in 1st or reverse my truck will buck and jump.

For normal street driving you can start out in 2nd. Granny low is only for towing, big loads, real tough work, etc. Some guys even start in 3rd, but I find that a little trickier. Alot of times you can start in 2nd and jump right over to 4th.

And if you have any forward momentum at all and need to downshift (for going around a turn, etc.) don't even try going into 2nd - you'll never get it engaged unless you slow almost to a stop - third gear is all you need to drop into. Unless I'm just creeping along I only use 3rd and 4th.

The SM465 is a great truck transmission and is a lot of fun. It's a tough transmission too, so just get out and drive and enjoy your truck.

Hope that helps! Have fun!
__________________
Curt

1970 C/10, 250 L6 with Rochester BV carb, SM465 4 speed, 3.73 open rear
camrycurt is offline   Reply With Quote
Old 06-01-2013, 04:46 PM   #13
RHGuyettejr
Registered User
 
RHGuyettejr's Avatar
 
Join Date: Jun 2012
Location: Keene, NH
Posts: 235
Re: Questions about driving stick shift- 4 speed on floor

Just a few tips that helped me out when I was learning...

Park the truck on a hill. (You'll want to be in first for this one) keep the clutch held down, and foot on the brake. Slowly let the brake out, you should start to roll back. Play around until you have the clutch let out enough that when your foot comes off the brake the truck doesn't roll back, but doesn't stall either. Typically the vehicle wont roll back at this point until you start to press the gas in, but by that time you can let out the clutch a bit more and be on your way. This helped me get a feel for the clutch a lot. I learned when my boss handed me the keys to a WRX and told me to gas it up... (used to work for subaru), not the best experience, but ever since I have found that by doing this I could feel out the sweet spot in the clutch.

Another tip, if your trans is a little sloppy, On these I have found that if it won't go into first at a dead stop, pop it in reverse, then go to first. Usually lines up the gears well. I always start in first gear, but it is unnecessary on flat ground, second is a low enough ratio that you won't wreck anything, just dont try to pull a boat out of the lake starting in 3rd.... long story. haha.

Hope that helps a bit.
RHGuyettejr is offline   Reply With Quote
Old 06-01-2013, 09:03 PM   #14
54belair
Registered User
 
54belair's Avatar
 
Join Date: Mar 2011
Location: bolivar, mo
Posts: 839
Re: Questions about driving stick shift- 4 speed on floor

Driving a stick is nearly a lost art. All suggestions above are good and accurate. Maaany years ago I taught my wife to drive. I had a mustang 4 speed, after our first trip out---I brought her home and bought two large sponges. I told her that when one sponge was fully depressed, the other had to be full size----and your feet have to work together--left down slowly as right comes up (off the gas)---then as left comes up--ease slowly down with right again. Everything should be fluid movements and not jerky.

Practice, practice, practice-------it never came easy---just training your reflexes.

Im building my project truck now with a car 4 speed----mainly to be able to teach my grandson how to drive a stick. By the time he gets the truck, for sure a stick will be something of the past.
__________________
1997 shortie stepside
1968 short stepside
1966 mustang
1966 chevelle ss

Dont always go the cheapest route--You can save yourself into the poorhouse!
My Build Thread
http://67-72chevytrucks.com/vboard/s...d.php?t=489030
54belair is offline   Reply With Quote
Reply

Bookmarks

Tags
driving, manual, shift, stick


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 12:32 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com