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#1 |
Used to have a truck
Join Date: May 2002
Location: port orchard WA
Posts: 1,552
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I wimped out
I pulled the 5.14 gears out of my truck and intalled 4.57's this morning. Its more driveable now. I'm a wimp.
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No truck :-( |
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#2 |
Account Suspended
Join Date: Jan 2000
Location: Woodstock, IL
Posts: 7,020
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LOL, what good is a truck if you can't drive it? Hehe.
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#3 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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5.14 is a lot of gear,even with a tall tire! How do the 4.57s feel?
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#4 | |
Registered User
Join Date: Feb 2003
Location: Mesquite, Tx
Posts: 396
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Quote:
![]() I'VE RODE IN A CAR WITH 4.30'S. FIRST GEAR IS VIRTUALLY NON-EXISTANT, YOU'RE THROUGH IT SO QUICK. HAVE FUN WITH THEM!
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GM 330HP/350, Magnuson 122HH, Tremec TKO 5spd |
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#5 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
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tire size makes quite a difference on gearing tho. With the 32" tall tires that Mike is running, the 4.57s shouldnt be too bad. I run 4.10s with a 28" tire, & they are a tad low on the hyway, but not bad in town.....crazyL
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#6 |
Registered User
Join Date: Mar 2003
Location: Stillwater MN
Posts: 1,166
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Nothing wimpy about admitting you"might" have made a mistake. Racedvl is right, if we all knew exactly what to do with our trucks the first time, we wouldn't need this board!! Enjoy
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69 GMC K10 ..some restoration required....still.. ![]() |
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#7 |
Used to have a truck
Join Date: May 2002
Location: port orchard WA
Posts: 1,552
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From the beginning I "thoughT" the 5.14's might be too much gear but since I had them I figured I give them a shot try them out. Didnt cost me more than 3 quarts of oil and some silicone sealant and a couple of hours of setup time. I'm actually becoming pretty good at setting backlash on these eatons . I wouldnt have to do that each time but I have 3 pumpkins and only one detroit locker unit so every time I pull the carrier I have to break open the differential to install the locker and then reset the ring to pinion backlash.
I do run 32 inch tires and while 5.14's and 4.57's might seem like a lot of gear for a car running 27 inch tires I can assure you its a different world with big tire trucks. I once bought a car that had 27 inch tires and a 4.56 geared detroit locker 9 inch. I was miserable and ended up going to 4.10's! These 4.57's in this truck with the 32 inch tires are very driveable. I think I'l stay with them.
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No truck :-( |
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#8 |
Used to have a truck
Join Date: May 2002
Location: port orchard WA
Posts: 1,552
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I do have to say something about detroit lockers. They are the only way to go ! Ive used traction control devices of all sorts over the years . Clutches wear out or slip on one side and they torque steer to the right. Detroit lockers last forever and track straight and true every time. The locker in my truck was manufactured in 1959 and to look at it you coulnt tell it wasn't made last year . I have no idea what people are talking about when they say they make a ratcheting sound around corners. If they do so what but I can't hear it. They do chirp the tires a bit when they unlock but thats just fine with me. Every time I hear that chirp it brings a smile to my face
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No truck :-( |
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#9 |
Registered User
Join Date: Jan 2003
Location: Kelowna B.C. Canada
Posts: 2,048
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I'll tell you what wimpin out is mikep is when your scared to take the diff cover off, I don't really know didley squat about diffs. so swapin diffs ain't wimpin to me
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#10 | |
Registered User
![]() Join Date: Nov 2002
Location: Lebanon, Tennessee
Posts: 1,372
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Quote:
![]() ![]() Hmmm. Might have to put that new dial indicator to work. Jeff ![]()
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Jeff '67 short Fleet; my ongoing project. '66 long Fleet; my original "baby." Live life or bust trying. |
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#11 |
Registered User
Join Date: May 2000
Location: Storm Lake, Ia
Posts: 1,449
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Next time I would suggest you video tape the process with some explanation as you go. I'm sure alot of us would purchase a how to tape.I have never done that but if I could watch someone else once, I wouldn't be so nervous about trying it myself.
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#12 |
Registered User
Join Date: Jan 2000
Location: The Netherlands
Posts: 1,063
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Mikep,
Since you are becomming an Eaton expert on this board ![]() can you tell me if an No Spin Rear Axle is the same as an Detroit Locker ? I have the No Spin Rear Axle according to my glovebox. Thanks in advance. Cya, Edmond ![]()
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1971 Chevy C/20 Longhorn, 350/TH400, Edelbrock Performer, IMPCO 425 LPG Carb 1974 Chevy Camaro Z28 (Original) ------------------------- The Netherlands |
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#13 |
Post Whore
![]() Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,684
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Yep, a No Spin is the Detroit Locker.
As for the ratcheting, I also don't hear that, but I do get a noise every once in a while when I drive my truck that is definitely the locker loading or unloading - was very alarming until I figured out it was not a problem.
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1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14 |
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#14 |
Senior Member
Join Date: Jan 2000
Location: Cincinnati, Ohio
Posts: 1,492
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I have lockers in all of my K20s and I have noticed that the automatic trucks don't make as much noise. I wonder if the automatic trans absorbs some of it? Nothing beats the detroit locker. I agree on that. You can get in trouble with one though. If you have lots of power and nail it during a turn you better hang on....lol. My dad made this mistake with a Cobra back in the old days and through a fence he went...
I'm running 4.57s with 35" tires on mine. It drives fine but you won't be setting any salt flats records. I actually have one center section with a 6 something gear in it. I think I might be able to pull trees out with that one. It was out of a GM panel van. |
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#15 |
Registered User
Join Date: Aug 2002
Location: Melville, SK
Posts: 1,145
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Well, I'll put it to you this way, at least you have the option to swap gears. I wanted to replace my 3.08s with 3.73s, but since I can't do it myself, my Dad figured it would cost me between 5-600 when all was said and done.
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2004 Silverado - Beater 1969 GMC - In progress http://67-72chevytrucks.com/vboard/s...d.php?t=441683 2011 Aveo - Work commuter 2013 Crestliner Fish Hawk 1650 - The reason no work gets done on the project truck. |
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#16 |
Recovering Truck Driver
Join Date: Mar 2002
Location: Orleans, NE USA
Posts: 1,883
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Man, speaking of diffs....I got up the nerve yesterday to pull the cover on my cutlass to investigate that clatter noise it came up with the last few times I drove it........the frickin' pin let go and was smackin' the pinion head.......ack......oh well, I've been looking for an excuse to put a posi in it anyway.
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67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska |
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#17 | |
Used to have a truck
Join Date: May 2002
Location: port orchard WA
Posts: 1,552
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Quote:
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No truck :-( Last edited by mikep; 03-31-2003 at 12:29 PM. |
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#18 |
Registered User
Join Date: Oct 2002
Location: Parksville, B.C. Canada
Posts: 637
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Thanks for the inspiration, Mike. I have an Eaton diff in my 69 with 4.57s, I want to change to a higher set of gears I seem to remember someone saying 3.54s were as high as you could go on the eaton 10 bolt. I think I may just attempt this job myself, always wanted a dial indicator! Anyone know if 3.54s are as high a gear you can get for the eaton?Thanks in advance.
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1969 G.M.C 3/4 Ton 920 (Canadian Version) 307 3 speed, currently apart 1998 Chevy 1/2 ton ex cab V-6 5 speed 1967 Chevy SWB - project truck; not started just yet |
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#19 |
Used to have a truck
Join Date: May 2002
Location: port orchard WA
Posts: 1,552
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Iv'e heard of some 3.70's or some 3.73's but apparently they are exceedingly rare if not nonexistent. I dont think there werre any 3.54's available for the eaton although with OLD chevy trucks you might find something. They made these as far back as '52 but in the old chevies they compensated for lack of engine power with low gears in their 3/4 and one tons so high gears might be difficult to find. I know there are or were 3.90's available aftermarket.
Ive got a good set of 4.11's I was going to put up on the for sale board if you are interested.
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No truck :-( |
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#20 | |
Registered User
Join Date: Jan 2000
Location: The Netherlands
Posts: 1,063
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Quote:
Cya, Edmond
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1971 Chevy C/20 Longhorn, 350/TH400, Edelbrock Performer, IMPCO 425 LPG Carb 1974 Chevy Camaro Z28 (Original) ------------------------- The Netherlands |
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#21 |
Registered User
Join Date: May 2003
Location: Keizer, OR
Posts: 103
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mikep I solute you. That stuff is scary. BTW I want to thank you for your many posts on Eaton axles. I bought my truck without knowing what I had. Turns out I have an Eaton and have learned much about it thanks to you.
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#22 |
PROJECT 7DEUCE
![]() Join Date: Dec 2002
Location: GRANTS PASS OR
Posts: 21,608
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Mike did you get something else or did you keep that beautiful truck????
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GO BIG GREEN ![]() MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P.. |
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#23 |
Hot Damn - Here I Am!!
Join Date: Feb 2000
Location: Ringgold, Georgia
Posts: 726
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Me personally, I wouldn't want to go lower than a 3.08. I owned a beater '70 a couple of years back that had a 4.11 or a 4.56 in it and I hated it out on the interstate. Sounded like it was about to blow up at 70mph or more. I'll stick with the 3.08's on my '71 - Love to be able to run up to the century mark without feeling like it's about to blow!
![]() ![]() A 700R4 would be sweet. Robert
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My vehicles: '90 Silverado Sport '71 Chevelle SS Convertible '70 C-10 - My Grandfather bought it new - original un-restored Last edited by Roberty; 05-18-2003 at 12:48 AM. |
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