![]() |
Hotrodders Bulletin Board
Home · Bulletin Board · Project Journals · Tech Article Wiki · Knowledge Base · Photo Gallery · Classifieds · Company Reviews · Calendar · T-Shirts |
|
||||||
|
|||||
![]() |
|
|
Thread Tools | Search this Thread |
|
#1
|
||||||
|
||||||
|
10 bolt GM rear end
I have a 56 Chevy with 454 and a TH400 tranny. I had someone put in 4:10 gears and now I have to re-torque them. NAPA and others have no idea what lubricant I need to put in the pumpkin. It is a posi-trac (because someone told me that because it left two tire marks on squeling tires.)
Can anyone help?? THX... |
|
#2
|
||||||
|
||||||
|
if it is a posi trac rear end then you will need to add the special posi trac additive with the gear oil. not doing so could burn up the clutches on the posi unit.
NAPA should be able to tell you what gear oil you should fill it with....so maybe try a different NAPA since the guys at your local one don't seem to be able to look it up. You may aslo want to call your local dealership and see what they suggest. |
|
#3
|
||||||
|
||||||
|
chevy dealer parts counter has the limited slip additive its about 8 bucks a bottle
80w90 is what oil to use you better run the stamping code on the axle tube with the chevy dealer parts counter to make sure its really lim slip just because it left black marks with both tires doesnt mean much good luck |
|
#4
|
|||||
|
|||||
|
Quote:
|
|
#5
|
|||||
|
|||||
|
It has been my experience to use fully synthetic oil in the rear end. It cost more, but the gears will last a lot longer. The regular gear oil will foam a lot and will not work as good. I found this out by racing on the dirt track.
|
|
#6
|
||||||
|
||||||
|
If you're running a 56 10 bolt, just clean up the third member and look for a giant letter "P" cast into it. If you don't have that then you don't have posi. You have to have that housing to run the posi. From what I understand they came in 'Vettes, so you'd be lucky to have scored one. Its worth about 550$ on ebay.
Someone correct me if I'm wrong! Dont want to put forth bad info, but this is correct to the best of my knowlege. |
![]() |
Back to top |
| Thread Tools | Search this Thread |
|
|
Similar Threads for: "10 bolt GM rear end"
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Questions on a GM 14 bolt rear. | 1tunda | Transmission - Rearend | 8 | 12-26-2008 09:13 PM |
| this is a saver.... GM build codes | TooMany2count | General Rodding Tech | 23 | 11-21-2008 07:27 PM |
| Question about 12 bolt rear end | Roy_67_SS350 | Transmission - Rearend | 6 | 12-14-2003 11:57 AM |
| Rear end swap problems | datsun dale | Transmission - Rearend | 1 | 12-17-2002 10:50 PM |
| converting GM 10 bolt to rear disc brakes, have questions | HotRodF100 | Suspension - Brakes - Steering | 7 | 09-18-2002 11:22 AM |