Which posi unit would you recommend? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gonline71 · 07-25-2010, 06:07 PM

I have a 1971 Chevy Longbed with a stock rearend and mild 350. My rear-end just started leaking and I figured, I have always wanted posi, but I have no experience with them. Please send me which unit would be best.

Thanks

**Jurassic-1** · 07-25-2010, 06:11 PM

The stock Eaton style works well. It has springs and clutches. Make sure to add the additive or ot will chatter on turns

Jwill41 · 07-25-2010, 10:23 PM

.
I found this while changing the rear end oil today. I assume this is a posi but it doesn't look like the others that I have seen.
.

Painter D · 07-25-2010, 10:24 PM

Auburn

Jwill41 · 07-25-2010, 10:26 PM

is it any good?

big_al_71 · 07-25-2010, 10:31 PM

I went with an Auburn unit.....so far so good!!!!!

Ackattack · 07-25-2010, 10:59 PM

I put an eaton posi in my 72 GMC and was happy with it, so I put another one in my 68

jamesi20 · 07-25-2010, 11:03 PM

Here's what I got...http://www.eaton.com/EatonCom/Produc...troitTruetrac/

**Already Gone** · 07-26-2010, 12:08 AM

ttt

80stepsideguy · 07-26-2010, 12:10 AM

Having a Eaton installed in a 12 bolt of mine right now..

thanks
pat

petey-pablo · 07-26-2010, 07:05 AM

I have a eaton posi with 373's in my truck maybe I should let you drive it for a few days so you can have a feel for it & see how it handles then see if thats what you want.. But then again if you do you might want more then just a posi unit.

"How bout BigBlock" That truck would look sweet & sound even better with a BigBlock now that it's not your daily driver. Also You might want to buy some gears well your at it too so you only have to open the Diff once.

SATownChevy · 07-26-2010, 09:06 AM

auburn with richmond gears is what i got. plus new moser axles while i was at it.

gonline71 · 07-26-2010, 10:32 AM

Thanks guys for all the feedback. The consensus is between the Auburn and the Eaton. I will start pricing both now.

eightbanger · 07-26-2010, 01:43 PM

Not to hijack....but is mine Auburn?

**Hart_Rod** · 07-26-2010, 09:36 PM

Quote:

Originally Posted by eightbanger

Not to hijack....but is mine Auburn?

Looks like an Eaton.

Fastfun · 07-26-2010, 10:25 PM

I went Auburn with richmond gears

eightbanger · 07-26-2010, 11:15 PM

Quote:

Originally Posted by Hart_Rod

Looks like an Eaton.

Cheers Rob.

raycow · 07-29-2010, 12:14 AM

Sorry for signing in late on this, but I vote for the True-trac. No clutches, no noise, no chattering, and no special lube needed.

Whatever else you might be considering, DON"T get a Gov-loc. GM used them as OE and they are unspeakably awful.

Ray

07-25-2010, 06:07 PM	#1
gonline71 Registered User Join Date: Jun 2007 Location: Pleasanton, CA Posts: 134	Which posi unit would you recommend? I have a 1971 Chevy Longbed with a stock rearend and mild 350. My rear-end just started leaking and I figured, I have always wanted posi, but I have no experience with them. Please send me which unit would be best. Thanks

07-25-2010, 06:11 PM	#2
Jurassic-1 Registered User Join Date: Jul 2007 Location: New River Arizona Posts: 1,180	Re: Which posi unit would you recommend? The stock Eaton style works well. It has springs and clutches. Make sure to add the additive or ot will chatter on turns

07-25-2010, 10:23 PM	#3
Jwill41 Registered User Join Date: Aug 2002 Location: Farmers Branch, Tx Posts: 1,009	Re: Which posi unit would you recommend? . I found this while changing the rear end oil today. I assume this is a posi but it doesn't look like the others that I have seen. . __________________ http://www.picturetrail.com/jwill41 67 1/2 ton GMC short step side 68 1/2 ton Chevy long fleet side 72 1/2 ton Chevy Suburban 99 1/2 ton Chevy Suburban founder (and only member) of the primer/clearcoat club

07-25-2010, 10:24 PM	#4
Painter D Registered User Join Date: Jun 2007 Location: DFW (Forney) Posts: 1,529	Re: Which posi unit would you recommend? Auburn __________________ '58 SWB Fleetside...Front & Rear Porterbuilt Dropmember, 6.0 LS /4L60E. Accuair E-level, 20 Billet Specialties (Vintecs) '63 Buick Riviera ... AccuAir E-level, 20" Billet Specialties (Vintecs) http://67-72chevytrucks.com/vboard/s...=528853&page=5

07-25-2010, 10:26 PM	#5
Jwill41 Registered User Join Date: Aug 2002 Location: Farmers Branch, Tx Posts: 1,009	Re: Which posi unit would you recommend? is it any good? __________________ http://www.picturetrail.com/jwill41 67 1/2 ton GMC short step side 68 1/2 ton Chevy long fleet side 72 1/2 ton Chevy Suburban 99 1/2 ton Chevy Suburban founder (and only member) of the primer/clearcoat club

07-25-2010, 10:31 PM	#6
big_al_71 Registered User Join Date: Jun 2008 Location: South Florida Posts: 11,375	Re: Which posi unit would you recommend? I went with an Auburn unit.....so far so good!!!!! Attached Images __________________ Get your facts first, and then you can distort them as much as you please!!!!!. Sylvester's build thread >>>http://67-72chevytrucks.com/vboard/s...ht=big+rebuild

07-25-2010, 10:59 PM	#7
Ackattack Senior Member Join Date: Aug 2002 Location: Valley Center KS Posts: 3,525	Re: Which posi unit would you recommend? I put an eaton posi in my 72 GMC and was happy with it, so I put another one in my 68 __________________ Project Bruiser: 68 Pro-Touring C-10 5.3L / 4L60E Project Ironhide: 97 GMC Crew Cab 4x4 Cummins SOLD: '69 GMC 1/2T SWB TBI'd: Project No Buck Assembly Manual Index Sign up Thread!!! Factory Service Manual Index

07-25-2010, 11:03 PM	#8
jamesi20 Senior Member Join Date: May 2002 Location: NORTHEAST OHIO Posts: 493	Re: Which posi unit would you recommend? Here's what I got...http://www.eaton.com/EatonCom/Produc...troitTruetrac/

07-26-2010, 12:08 AM	#9
Already Gone 70+ ( Old Skool Club ) Join Date: Nov 2003 Location: Saskatoon, Saskatchewan ,Canada Posts: 9,068	Re: Which posi unit would you recommend? ttt __________________ 1972 C10 Custom/Deluxe 613 Highlander 406/700R4 1999 White Tahoe LS 4x2 with Z56 Police Package 1992 K1500 GMC Suburban Members I have personally met: MusicMan70 - HeavyD - ChewyChevy67 - StingRay -71SWB4x4 - 67 Burb - DeadheadNM - too much stuff - bc65 - das601 " Circumsatances Do Not Change Responsibility " " The Sky is not the Limit, Your Mind is." Marilyn Monroe .. RIP Charlie Watts 1941 - 2021

07-26-2010, 12:10 AM	#10
80stepsideguy Laid back freak Join Date: Mar 2008 Location: hastings florida Posts: 248	Re: Which posi unit would you recommend? Having a Eaton installed in a 12 bolt of mine right now.. thanks pat __________________ 1980 chevy c10 step side restomod, 1970 cougar convertible 1 OF 24 ever built: 2014 Hyundai Tucson limited (daily driver).

07-26-2010, 07:05 AM	#11
petey-pablo "THE GREEN GOBLIN" Join Date: Mar 2008 Location: Fremont Ca. Posts: 1,025	Re: Which posi unit would you recommend? I have a eaton posi with 373's in my truck maybe I should let you drive it for a few days so you can have a feel for it & see how it handles then see if thats what you want.. But then again if you do you might want more then just a posi unit. "How bout BigBlock" That truck would look sweet & sound even better with a BigBlock now that it's not your daily driver. Also You might want to buy some gears well your at it too so you only have to open the Diff once. __________________ Petey-pablo "THE GREEN GOBLIN" 1972 Cheyenne 10 Short Fleet Side Front 2.5inch Spindles with 2inch Springs Rear 4inch drop Springs. 454BBC TH400,Posi 1971 Cheyenne 10 Long Fleet Side 454BBC TH350,Posi Sold Drive it like you stole it! Petey-pablo@sbcglobal.net

07-26-2010, 09:06 AM	#12
SATownChevy Registered User Join Date: Mar 2010 Location: San Antonio, TX Posts: 265	Re: Which posi unit would you recommend? auburn with richmond gears is what i got. plus new moser axles while i was at it. __________________ View pics of my truck - 1968 Chevy C10 SWB - Photobucket Build-up Thread I'm not wasting money on my truck, I'm helping to rescue the economy one mod at a time.

07-26-2010, 10:32 AM	#13
gonline71 Registered User Join Date: Jun 2007 Location: Pleasanton, CA Posts: 134	Re: Which posi unit would you recommend? Thanks guys for all the feedback. The consensus is between the Auburn and the Eaton. I will start pricing both now.

07-26-2010, 01:43 PM	#14
eightbanger 454 MAKES IT ROAR Join Date: Jan 2008 Location: Essex, U.K Posts: 2,701	Re: Which posi unit would you recommend? Not to hijack....but is mine Auburn? Attached Images __________________ Nigel. An American living in a British body. 1971 Chevy Cheyenne 10 454 "In a time of universal deceit, telling the truth becomes a revolutionary act." - George Orwell "When injustice becomes law, resistance becomes duty" - Thomas Jefferson No more pain. 03.12.60 -- 12.28.10 http://www.youtube.com/Eightbanger Last edited by eightbanger; 07-26-2010 at 01:46 PM.

07-26-2010, 10:25 PM	#16
Fastfun Registered User Join Date: Jun 2005 Location: Scottsdale, AZ Posts: 615	Re: Which posi unit would you recommend? I went Auburn with richmond gears



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07-29-2010, 12:14 AM	#18
raycow Registered User Join Date: Mar 2003 Location: San Francisco, CA USA Posts: 2,454	Re: Which posi unit would you recommend? Sorry for signing in late on this, but I vote for the True-trac. No clutches, no noise, no chattering, and no special lube needed. Whatever else you might be considering, DON"T get a Gov-loc. GM used them as OE and they are unspeakably awful. Ray Last edited by raycow; 07-29-2010 at 12:17 AM.

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