locking diff questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

big10ratrod77 · 11-06-2011, 09:49 PM

hey guys I have been looking into putting a locking differential in my 79 Chevy with a 12 bold rear end, its two wheel drive and has stock 235/75r15's and I want to add a locker that replaces the spider gears inside the carrier but I was wondering how hard the install would be? Would I need C clip eliminators to install that locker set up? if so is there a cheap reliable way to lock the rear without welding up the spider gears?

http://www.ringpinion.com/ProductDet...rand=PowerTrax

here is what i have been looking at but are there any better options?

INSIDIOUS '86 · 11-07-2011, 12:17 AM

looks like an inexpensive unit, says it shouldnt be used with high powere or big tires so if you just have a daily driver that sees occasional light duty im sure it would be fine.

looks like its the same unit as summit sells from richmond gear called Powertrax lock right but ive never heard of a limeted power capability on those?

bucannon · 11-07-2011, 12:48 AM

how streetable is a locker in the rain for a daily driver?

INSIDIOUS '86 · 11-07-2011, 02:59 AM

Quote:

Originally Posted by bucannon

how streetable is a locker in the rain for a daily driver?

were in trucks with all about 200(not really) pounds over the rear tires haha whenever both wheels move your sidways rain or dry weather

do you hava budget with your diffrential?

big10ratrod77 · 11-07-2011, 07:55 AM

Well the truck has a 250 straight six I am rebuilding with a few performance mods so I am estimating maybe 200 horsepower I am going to install a 3.73 ring and pinion and go with some sort of locker/posi. The truck is just kind of going to be a work truck when I need it, I have been in places I shouldn’t have working and found out real quick that a locker would be nice, as far as a budget its I don’t really have one I am 18 and have no girlfriend (besides my trucks) and no one that I have to take care of and I am working making plenty of money to save up and buy what I need, so I don’t have a "set budget" on this truck I am just going to get it to the point that its a nice truck and I can use it when I need it

INSIDIOUS '86 · 11-10-2011, 12:34 AM

Quote:

Originally Posted by big10ratrod77

Well the truck has a 250 straight six I am rebuilding with a few performance mods so I am estimating maybe 200 horsepower I am going to install a 3.73 ring and pinion and go with some sort of locker/posi. The truck is just kind of going to be a work truck when I need it, I have been in places I shouldn’t have working and found out real quick that a locker would be nice, as far as a budget its I don’t really have one I am 18 and have no girlfriend (besides my trucks) and no one that I have to take care of and I am working making plenty of money to save up and buy what I need, so I don’t have a "set budget" on this truck I am just going to get it to the point that its a nice truck and I can use it when I need it

well i would say it should work out great for your setup then

CentipedePerformance · 11-07-2011, 02:42 AM

Ratcheting lockers get really finicky with un-even tire pressure, slick surfaces etc. I don't know if I would use one in a daily. A True-Trac, clutch-type posi, or hell, even a g-lock would probably be better suited for a light duty daily.

rayfinseats · 11-10-2011, 01:56 AM

A posi rear can push you straight a little in snow on hard turns but otherwise no problem. Rain not a problem. I think those are designed to run C-clips. I have used a bunch of posis on the street. They may clunk a little on turns but no big deal.

big10ratrod77 · 11-10-2011, 07:53 AM

alright sounds good to me i will go with a posi

11-06-2011, 09:49 PM	#1
big10ratrod77 Registered User Join Date: Aug 2009 Location: hillborough nc Posts: 410	locking diff questions hey guys I have been looking into putting a locking differential in my 79 Chevy with a 12 bold rear end, its two wheel drive and has stock 235/75r15's and I want to add a locker that replaces the spider gears inside the carrier but I was wondering how hard the install would be? Would I need C clip eliminators to install that locker set up? if so is there a cheap reliable way to lock the rear without welding up the spider gears? http://www.ringpinion.com/ProductDet...rand=PowerTrax here is what i have been looking at but are there any better options? __________________ 77 chevy BIG 10 350/sm465/12bolt w 3.73 bout 240 horse power NO power steerin 79 chevy 1/2 ton 250/three on the tree/3.08s soon to get built 250/floor shift conversion/3.08s 81 mercedes 300d 25 MPG 77 chevy BIG DOOLEY 454/sm-465/14 bolt 4.10s "fully loaded" 73 plymouth duster 225 slant six/230 3 speed/8 1/4 trying to acheve 300 horse six http://www.cardomain.com/ride/3135091 '77 chevy trucks. built to stay tough. life is short build a hot rod

11-07-2011, 12:17 AM	#2
INSIDIOUS '86 Registered User Join Date: Jul 2009 Location: washington Posts: 4,178	Re: locking diff questions looks like an inexpensive unit, says it shouldnt be used with high powere or big tires so if you just have a daily driver that sees occasional light duty im sure it would be fine. looks like its the same unit as summit sells from richmond gear called Powertrax lock right but ive never heard of a limeted power capability on those? __________________ 377 sbc thumpr cam autogear m23 muncie 3:73 Detroit trutrac 3''spintech prostreet mufflers xpipe 1 3/4 headers build thread !http://67-72chevytrucks.com/vboard/s...d.php?t=577217 Iroc gauge threadhttp://67-72chevytrucks.com/vboard/s...d.php?t=554511

11-07-2011, 12:48 AM	#3
bucannon Salty Sailor Join Date: May 2009 Location: Savannah, Ga Posts: 603	Re: locking diff questions how streetable is a locker in the rain for a daily driver? __________________ 86 c-10 Custom Deluxe Savannah, Georgia

11-07-2011, 07:55 AM	#5
big10ratrod77 Registered User Join Date: Aug 2009 Location: hillborough nc Posts: 410	Re: locking diff questions Well the truck has a 250 straight six I am rebuilding with a few performance mods so I am estimating maybe 200 horsepower I am going to install a 3.73 ring and pinion and go with some sort of locker/posi. The truck is just kind of going to be a work truck when I need it, I have been in places I shouldn’t have working and found out real quick that a locker would be nice, as far as a budget its I don’t really have one I am 18 and have no girlfriend (besides my trucks) and no one that I have to take care of and I am working making plenty of money to save up and buy what I need, so I don’t have a "set budget" on this truck I am just going to get it to the point that its a nice truck and I can use it when I need it __________________ 77 chevy BIG 10 350/sm465/12bolt w 3.73 bout 240 horse power NO power steerin 79 chevy 1/2 ton 250/three on the tree/3.08s soon to get built 250/floor shift conversion/3.08s 81 mercedes 300d 25 MPG 77 chevy BIG DOOLEY 454/sm-465/14 bolt 4.10s "fully loaded" 73 plymouth duster 225 slant six/230 3 speed/8 1/4 trying to acheve 300 horse six http://www.cardomain.com/ride/3135091 '77 chevy trucks. built to stay tough. life is short build a hot rod

11-07-2011, 02:42 AM	#7
CentipedePerformance Registered User Join Date: Oct 2011 Location: Tucson, AZ Posts: 55	Re: locking diff questions Ratcheting lockers get really finicky with un-even tire pressure, slick surfaces etc. I don't know if I would use one in a daily. A True-Trac, clutch-type posi, or hell, even a g-lock would probably be better suited for a light duty daily.

11-10-2011, 01:56 AM	#8
rayfinseats Registered User Join Date: Dec 2010 Location: sioux city, iowa Posts: 619	Re: locking diff questions A posi rear can push you straight a little in snow on hard turns but otherwise no problem. Rain not a problem. I think those are designed to run C-clips. I have used a bunch of posis on the street. They may clunk a little on turns but no big deal.

11-10-2011, 07:53 AM	#9
big10ratrod77 Registered User Join Date: Aug 2009 Location: hillborough nc Posts: 410	Re: locking diff questions alright sounds good to me i will go with a posi __________________ 77 chevy BIG 10 350/sm465/12bolt w 3.73 bout 240 horse power NO power steerin 79 chevy 1/2 ton 250/three on the tree/3.08s soon to get built 250/floor shift conversion/3.08s 81 mercedes 300d 25 MPG 77 chevy BIG DOOLEY 454/sm-465/14 bolt 4.10s "fully loaded" 73 plymouth duster 225 slant six/230 3 speed/8 1/4 trying to acheve 300 horse six http://www.cardomain.com/ride/3135091 '77 chevy trucks. built to stay tough. life is short build a hot rod



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