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09-05-2016, 07:04 AM
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#1 |
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Registered User
 
Join Date: Aug 2011
Location: Boston, MA
Posts: 695
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Ring and Pinion gear change question
Anyone know of any reason not to rebuild a third member with 3:55 gear and pinion out of a parts truck AD rear end and then use it in another truck? This way I can do all the work with minimum time running truck is off the road. Both are 1949 AD Pick up trucks. I guess question is are the rear end parts all the same with the exception of the left and right bearings which are machined at time of trucks birth.
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Pat 1949 unmolested Indy Farm Deluxe AD 1949 Standard 4 speed http://67-72chevytrucks.com/vboard/s...d.php?t=581544 |
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09-05-2016, 09:08 AM
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#2 |
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Registered User
Join Date: Dec 2002
Location: Cactus Patch So. Az
Posts: 4,749
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Re: Ring and Pinion gear change question
Why not change the whole rear axle
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53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD) 53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25 55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73 62 Solidaxle Corvette Roman Red (327 340hp 4spd 3:36) C4 & C5 suspension tube chassis LS 3 4L70E 65 Corvette Coupe 327 350hp 4spd 4:11 78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42 2000 S-Type 3.0 (wife cruiser) 2003 GMC SCSB 5.3 4L60E 3:42 |
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09-05-2016, 09:21 AM
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#3 |
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Registered User
Join Date: Aug 2011
Location: Boston, MA
Posts: 695
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Re: Ring and Pinion gear change question
Do you mean take the rear end off the parts truck which is in great shape and do it complete rebuild then through it on the running truck? That's what I was thinking to do.
__________________
Pat 1949 unmolested Indy Farm Deluxe AD 1949 Standard 4 speed http://67-72chevytrucks.com/vboard/s...d.php?t=581544 |
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09-05-2016, 09:26 AM
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#4 |
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Registered User
Join Date: Dec 2002
Location: Cactus Patch So. Az
Posts: 4,749
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Re: Ring and Pinion gear change question
Are you sure the ratio is 3:55 on a AD truck, do they both have closed drive shaft?
__________________
53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD) 53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25 55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73 62 Solidaxle Corvette Roman Red (327 340hp 4spd 3:36) C4 & C5 suspension tube chassis LS 3 4L70E 65 Corvette Coupe 327 350hp 4spd 4:11 78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42 2000 S-Type 3.0 (wife cruiser) 2003 GMC SCSB 5.3 4L60E 3:42 |
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09-05-2016, 09:30 AM
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#5 |
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Registered User
Join Date: Aug 2011
Location: Boston, MA
Posts: 695
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Re: Ring and Pinion gear change question
I bought the kit to upgrade rear end to 3:55 and both trucks have the enclosed drive shaft. One is a deluxe with 3 on tree and the parts truck is a 5 speed standard. All the driveshafts must be same length irrelevant of the tranny. Before I do any rebuild I will take measurements.
__________________
Pat 1949 unmolested Indy Farm Deluxe AD 1949 Standard 4 speed http://67-72chevytrucks.com/vboard/s...d.php?t=581544 |
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09-05-2016, 02:09 PM
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#6 |
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Registered User
Join Date: Nov 2015
Location: Jemez Springs, NM
Posts: 435
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Re: Ring and Pinion gear change question
5 speed standard?
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09-05-2016, 04:11 PM
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#7 |
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Registered User
Join Date: Aug 2011
Location: Boston, MA
Posts: 695
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Re: Ring and Pinion gear change question
Sorry 4 speed on the floor.
__________________
Pat 1949 unmolested Indy Farm Deluxe AD 1949 Standard 4 speed http://67-72chevytrucks.com/vboard/s...d.php?t=581544 |
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09-05-2016, 04:25 PM
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#8 |
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Registered User
Join Date: Nov 2015
Location: Jemez Springs, NM
Posts: 435
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Re: Ring and Pinion gear change question
Guess it is technically a 5 speed. Four forward, one reverse. Standard
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09-05-2016, 04:32 PM
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#9 |
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Registered User
Join Date: Sep 2005
Location: Southwestern Desert
Posts: 26
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Re: Ring and Pinion gear change question
No need to remove the torque tube from the truck to upgrade to the 3.55 gears.
Deve has a great tech article on how to do it here..... http://www.devestechnet.com/home/DifferentialOverhaul . |
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09-05-2016, 04:33 PM
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#10 |
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Registered User
Join Date: Aug 2011
Location: Boston, MA
Posts: 695
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Re: Ring and Pinion gear change question
Standard meaning no chrome and not with 5 windows.
__________________
Pat 1949 unmolested Indy Farm Deluxe AD 1949 Standard 4 speed http://67-72chevytrucks.com/vboard/s...d.php?t=581544 |
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