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#1 |
71 DELUX
Join Date: Sep 2003
Location: Northern CA / Sac
Posts: 1,056
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posi ? limited slip ? other ?
Okay,
I am just learning about these trucks and this board, so this may sound like a silly question, but anyway... In checking the ratio of this rear end I was going to spin the drive shaft and count wheel rotations. I have no wheels on the rear end right now. I also then went to the wheels and rotated one of them and noticed that the other did not rotate... I then tried it again on the other side, doing the same, the opposite side did not rotate as I expected it to, in the opposite direction. What does this tell me? Anything good? Something bad? Thanks. |
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#2 |
Merciless Butcher
Join Date: Oct 2003
Location: CC Nevada
Posts: 1,447
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Sounds like a normal non-posi one legger rear end to me. I think if it was a posi, both of the wheels would turn in the same direction when you turn one of them. I could be wrong though....Anyone else know for sure.
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Your Bought And Sold....I Got Your Soul! |
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#3 |
F.A.S.T. president
![]() Join Date: Sep 2003
Location: Florida
Posts: 1,883
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Thats normal.....you have an open diff.
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#4 |
Registered User
Join Date: Oct 2001
Location: SW Washington
Posts: 1,006
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The two terms Posi and Limited slip, are the same.
I think it was the company Eaton that coined the phrase Posi. General Motors later built the same rearend and called it Limited slip. Posi / limited slip is where there are clutches in the rearend that loc up when one wheel slips, and engages both rear wheels. By what you described with your wheels spinning (or not spinning in your case) sounds like what you have is what most folks call an "open diferential". This is when only one wheel drives the rear. No matter what. Doesnt matter how slippery the condidions, only one wheel drives. There is also what some folks call a "Dertoit Locker" or just a "Locker". This is just like a Posi / limited slip, but instead of clutches, there is a mechanical ratchet mecanism. When you go around a corner with a "locker" rearend, you can hear the ratchet sound. Thse are mostly aftermarket, and used in "Off Road" trucks / conditions. Darren
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Washington State 1967 Chevy C10 LWB Rodstoration In Progress. 1972 K20 Cheyenne Super |
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#5 |
71 DELUX
Join Date: Sep 2003
Location: Northern CA / Sac
Posts: 1,056
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Then in what situation/configuration, does the opposite wheel (say left) rotate in the opposite direction when the (say right) is turned?
Or am I just thinking of my old remote control car days and simply asking a REALL STUPID question concerning these trucks? It could happen! Thanks, Jeff |
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#6 | |
Registered User
![]() Join Date: Aug 2001
Location: SOMERSET KY.
Posts: 6,427
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Quote:
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junkyardjohn 69 1 TON TOW TRUCK // 84 4WD CUCV BLAZER// 85 1 TON 4WD STAKE TRUCK// 86 M1031 5/4 TON 4WD CUCV// ALOT OF OLD TRUCKS FOR ONE OLD MAN TO DRIVE. ![]() LIFE MEMBER OF P.E.T.A (PEOPLE EATING TASTY ANIMALS) DON'T RENT U-HAUL ALWAYS TELL THE TRUTH IT WILL AMAZE PART OF THE PEOPLE & ASTONISH THE REST |
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#7 |
Registered User
Join Date: Apr 2003
Location: missouri city, tx
Posts: 4,486
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ok with my truck im pretty sure its a open diff but not sure. this test was performed on stones btw... in forward the right rear wheel spins and in reverse both wheels spin...?????
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70 longbed 496/th400/Ford 9" |
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#8 |
PROJECT 7DEUCE
![]() Join Date: Dec 2002
Location: GRANTS PASS OR
Posts: 21,608
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Dinnit it's open... Jeff there are no stupid question's only those not asked IMO..
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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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#9 |
Senior Moment
![]() Join Date: Mar 2002
Location: Pittsburg Ca
Posts: 4,142
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I'm with FRENCHBLUE72 There ARE no stupid ?'s Ask away
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1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN 2013 GMC PU, Oldest Son 71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son 2019 GMC Diesil Dually. Youngest Son 2017 Toyota SUV Daughters car 2018 Traverse , Wife’s Ride Pittsburg Ca 94565 |
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