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#1 |
Registered User
Join Date: Jun 2010
Location: Clarksville, Tn
Posts: 142
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rear end gear and unit?
hey guys, i have a 70 c10 2wd that was originally 3 on tree with inline 6. before i pulled the rearend cover, i had assumed that the ring and pinion was a 410 set due to the inline 6. when i pulled the cover and let all the muddy looking gear oil out, i noticed on the ring gear it was stamped 3817778 11-41 gm. i figured that stood for teeth count on the set, but i counted anyways. infact, i counted 11-41 teeth on the set which was 3.73 instead of the 4 range. can anyone tell me by looking if this carrier is a posi, limited slip, etc. i honestly dont know what im looking at when it comes to these. thanks for any help guys. also, i noticed that the actual ring gear had what looked like white paint marker on it which read "E403" any ideas?
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#2 |
member #16
![]() Join Date: Dec 1999
Location: Yuba City Ca.
Posts: 3,618
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Re: rear end gear and unit?
You've got a POSI.
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john http://67-72chevytrucks.com/vboard/showgroups.php board vendors ![]() http://www.flickr.com/photos/1745471...7602865984234/ |
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#3 |
Registered User
Join Date: Jun 2010
Location: Clarksville, Tn
Posts: 142
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Re: rear end gear and unit?
Thanks for the reply john
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#4 |
Registered User
Join Date: Aug 2010
Location: RTP, NC
Posts: 518
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Re: rear end gear and unit?
Is it the springs that are posi?
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![]() ![]() 71 C-10 - 307 - 3 on tree 01 Ford Explorer 5.0 v8 96 Mercury Cougar v8 79 Trans Am 403 Olds |
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#5 |
Registered User
Join Date: Apr 2003
Location: NB
Posts: 3,367
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Re: rear end gear and unit?
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1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD |
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#6 |
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Join Date: Apr 2003
Location: NB
Posts: 3,367
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Re: rear end gear and unit?
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#7 |
70+ ( Old Skool Club )
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Location: Saskatoon, Saskatchewan ,Canada
Posts: 9,119
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Re: rear end gear and unit?
subscribed
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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 |
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#8 |
Registered User
Join Date: Jun 2010
Location: Clarksville, Tn
Posts: 142
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Re: rear end gear and unit?
good links guys
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#9 |
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Join Date: Jun 2010
Location: San Diego Co.
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Re: rear end gear and unit?
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#10 |
Senior Member
Join Date: Mar 2002
Location: 12 Miles South of Des Moines, Iowa
Posts: 359
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Re: rear end gear and unit?
Kidd -7 I am not sure anyone answered your question. The springs are a dead giveaway that this is a limited slip (posi) rear. The springs push on two plates that put pressure on the axle sidegears. This in turn loads the clutch packs that are behind the axle sidegears. When the axles begin to turn at different speeds the clutch packs heat up, expand and wedge between the carrier and the axle sidegears. This causes the axles to want to turn with the carrier, not independently. Therefore you end up with power to both wheels at the same time. Hope that helped.
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69 C-10, 340HP 327 55 chevy 4 door 150 47 Willys CJ-2A 05 Harley Night Train 06 1200 Sportster (Wife's bike) 70 Honda CL350 OIF2 & OIF7 Veteran ![]() Nathan & Tiffany |
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#11 |
Registered User
Join Date: Jun 2010
Location: Clarksville, Tn
Posts: 142
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Re: rear end gear and unit?
springs are a dead giveaway...next time i know what to look for. good stuff
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#12 |
Registered User
Join Date: Aug 2010
Location: RTP, NC
Posts: 518
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Re: rear end gear and unit?
Thanks,texnician01 , thats basically what I thought; wanted confirmation though
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![]() ![]() 71 C-10 - 307 - 3 on tree 01 Ford Explorer 5.0 v8 96 Mercury Cougar v8 79 Trans Am 403 Olds |
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