Posi!! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Hoffman65burb · 10-08-2008, 12:15 PM

Today i was spinning my wheels for some reason, and i saw that i have a locking diff

. I counted the gears they are 4.25, what is this diff good for? hard acceleration? highway? cruising?

-Rhys

jchav62 · 10-08-2008, 12:24 PM

4.25 seems pretty low. Not good for highway. I've never heard of it. I'm sure the gurus will chime in....

dolphman88 · 10-08-2008, 01:11 PM

425? dam... torquer.. never heard of it either... but u wont be puttin many highway miles on it with that... you outta be able to pull up some stumps, or fords out of mudholes and thats about it.

Hoffman65burb · 10-08-2008, 01:24 PM

sorry 4.11

YOLO · 10-08-2008, 01:30 PM

I have 4:11 in my 63. LOVE IT! It hooks up and moves at any speed. I am rolling on 24 inch rims too.

jchav62 · 10-08-2008, 03:02 PM

4.11, posi. That's more like it. Cool... That's a fun gear to do burnouts and jump off the line with or cruising around town, but unless you have overdrive or big wheels like yolo, you'll be hitting some high RPM's at highway speeds.

Hoffman65burb · 10-08-2008, 11:30 PM

awsome, good thing i checked to see if it was a posi be for i bought a new diff haha!

**ChiefRocka** · 10-08-2008, 11:50 PM

I would go ahead and buy a new diff anyway, and scrap that one into my bin...I'll give you the address !!

Hoffman65burb · 10-09-2008, 12:03 AM

was thinking of doin a 6.0 vortec with trans swap into it , so highway shouldent be that bad right?

Frizzle Fry · 10-09-2008, 12:49 AM

Yep, an AOD would be sweet with that rear.

jchav62 · 10-09-2008, 09:26 AM

Quote:

Originally Posted by Hoffman65burb

was thinking of doin a 6.0 vortec with trans swap into it , so highway shouldent be that bad right?

PERFECT!

10-08-2008, 12:15 PM	#1
Hoffman65burb Registered User Join Date: Jul 2008 Location: Vancouver BC Posts: 448	Posi!! Today i was spinning my wheels for some reason, and i saw that i have a locking diff . I counted the gears they are 4.25, what is this diff good for? hard acceleration? highway? cruising? -Rhys __________________ 1978 GMC Jimmy 454bbc Turbo400 NP205 3.73 gears 4inch lift 33's

10-08-2008, 12:24 PM	#2
jchav62 1962 C-10 Join Date: Apr 2005 Location: Las Vegas, New Mexico Posts: 4,978	Re: Posi!! 4.25 seems pretty low. Not good for highway. I've never heard of it. I'm sure the gurus will chime in.... __________________ Joseph Chavez "See the USA in a Chevrolet!!" ......................_____ .........________//__{\_____ ,,,,,,,/__(O)___//___/__(O)_/ 1962 C10 Shortbed Fleetside 327/th350 GV overdrive 1974 C10 Longbed Fleetside 350/th350 "The Trash Truck" 1999 Chevy 2500 OBS, Longbed 5.7/4L80E 4x4 2015 GMC Sierra SLE 1500 4x4

10-08-2008, 01:11 PM	#3
dolphman88 DDOV Join Date: Sep 2008 Location: North Wilkesboro, NC Posts: 210	Re: Posi!! 425? dam... torquer.. never heard of it either... but u wont be puttin many highway miles on it with that... you outta be able to pull up some stumps, or fords out of mudholes and thats about it. __________________ If you don't like the way I drive, stay off the sidewalk http://67-72chevytrucks.com/vboard/s...d.php?t=317070 The problem with America is stupidity. I'm not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself?

10-08-2008, 01:24 PM	#4
Hoffman65burb Registered User Join Date: Jul 2008 Location: Vancouver BC Posts: 448	Re: Posi!! sorry 4.11 __________________ 1978 GMC Jimmy 454bbc Turbo400 NP205 3.73 gears 4inch lift 33's

10-08-2008, 01:30 PM	#5
YOLO Custom Truck Lover! Join Date: Nov 2007 Location: Phoenix, AZ Posts: 440	Re: Posi!! I have 4:11 in my 63. LOVE IT! It hooks up and moves at any speed. I am rolling on 24 inch rims too.

10-08-2008, 03:02 PM	#6
jchav62 1962 C-10 Join Date: Apr 2005 Location: Las Vegas, New Mexico Posts: 4,978	Re: Posi!! 4.11, posi. That's more like it. Cool... That's a fun gear to do burnouts and jump off the line with or cruising around town, but unless you have overdrive or big wheels like yolo, you'll be hitting some high RPM's at highway speeds. __________________ Joseph Chavez "See the USA in a Chevrolet!!" ......................_____ .........________//__{\_____ ,,,,,,,/__(O)___//___/__(O)_/ 1962 C10 Shortbed Fleetside 327/th350 GV overdrive 1974 C10 Longbed Fleetside 350/th350 "The Trash Truck" 1999 Chevy 2500 OBS, Longbed 5.7/4L80E 4x4 2015 GMC Sierra SLE 1500 4x4

10-08-2008, 11:30 PM	#7
Hoffman65burb Registered User Join Date: Jul 2008 Location: Vancouver BC Posts: 448	Re: Posi!! awsome, good thing i checked to see if it was a posi be for i bought a new diff haha! __________________ 1978 GMC Jimmy 454bbc Turbo400 NP205 3.73 gears 4inch lift 33's

10-08-2008, 11:50 PM	#8
ChiefRocka Hollister, CA. Join Date: Sep 2006 Location: Hollister, Ca. Posts: 6,150	Re: Posi!! I would go ahead and buy a new diff anyway, and scrap that one into my bin...I'll give you the address !! __________________ John What the Heck is that ?? CURRENT BUILDS: 62 BurbMaster Other Builds: My '63 C-10,LWB,CC,BBW '06 HD StrAight Axle Swap Father/Son '67 C-20, LQ9,4L80,Bagged,8-Lugger !!Good Friend Richard's Build AMERICAN CUSTOMS & CLASSICS (831) 630-1965 www.ACCHOLLISTER.com ACC on FACEBOOK "Rest in Peace, Mom & Dad ... I will see you again someday!"

10-09-2008, 12:03 AM	#9
Hoffman65burb Registered User Join Date: Jul 2008 Location: Vancouver BC Posts: 448	Re: Posi!! was thinking of doin a 6.0 vortec with trans swap into it , so highway shouldent be that bad right? __________________ 1978 GMC Jimmy 454bbc Turbo400 NP205 3.73 gears 4inch lift 33's

10-09-2008, 12:49 AM	#10
Frizzle Fry Registered User Join Date: Aug 2005 Location: Hillsboro Oregon Posts: 6,449	Re: Posi!! Yep, an AOD would be sweet with that rear.



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