Register or Log In To remove these advertisements. |
|
|
|
Thread Tools | Display Modes |
05-12-2005, 11:11 AM | #1 |
Registered User
Join Date: Feb 2005
Location: Bay Area, California
Posts: 995
|
What tools will I need?
I am planning on replacing my rear gear ratio from a 3.73 to a 3.08. I have seen
lots of guys selling the gearsets on the parts forum. But I have never done this before. What kind of tools will I need? Will I need to press-on anything or will I need any special removal tool? I just dont want to get half way through, then figure out I needed a blue pair of left handed scissors to finish the job... thanks!
__________________
1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree |
05-12-2005, 11:16 AM | #2 |
Senior Member
Join Date: Jan 2005
Location: CA
Posts: 5,982
|
The pinion gear bearing is a bit of a chore to get off, but if you are installing a new bearing, then you don't have to worry about it.
|
05-12-2005, 11:41 AM | #3 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
|
i hope you realize that you're going to need a different carrier for the 308gearset. you'll also need a dial indicator to set the gears up
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
05-12-2005, 11:50 AM | #4 | |
Registered User
Join Date: Feb 2005
Location: Bay Area, California
Posts: 995
|
Quote:
Ummmm. This was what I was afraid of. Seeing as I dont even know what a carrier is, nor what a dial indicator even looks like. Im not afraid of doing something new and learning something along the way, but to you know of any "how-to" guides that might help me out? I hate to sound like such an amateur....
__________________
1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree |
|
05-12-2005, 12:54 PM | #5 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
|
I would suggest that you enlist someone to help you that has done a gear set change before. If the gears are not properly meshed you can end up with noisy rear end or the rear end will destroy itself.
Jim |
05-12-2005, 01:05 PM | #6 |
Cantankerous Geezer
Join Date: Aug 2002
Location: Bel Aire, KS
Posts: 6,264
|
Do you have the factory service manual? If not, it will become the best tool in your toolbox. You can buy a reprint from the on-line parts dealers.
Sounds like you will be over your head on this. I would recommend getting the carrier assembly (pumpkin) out of another truck. That way you don't have to worry about setting up the gears. It will involve only removing the cover, pulling the axles out and changing the carrier. I would also replace the axle seals while you have it apart.
__________________
Fred There is no such thing as too much cam...just not enough engine. |
05-12-2005, 01:06 PM | #7 |
Registered User
Join Date: Apr 2003
Location: NB
Posts: 3,367
|
Heres my email form a board member! He rocks!
-------------------------------------------------------------------------------- Quote: Originally Posted by 67chevemall It is a stock 12 bolt 3:73 that works great But the top end is no good. I would just swap the gears and change the oil?? What other parts, tools are involved? What on earth does "the carrier break is 3:42's" mean? Cheers and thanks! BC The carriers are what the ring gear bolts to. There are different carriers for different gears. There is one for 2:73-2:76, 2:76-3:42,3:42-3:73, and 3:73-up. That's what I mean about breaks. The gears are not as easy to do as change the gears, chaneg the oil and go. You actually have to "setup" the gears so that the have good connection between the pinion and ring gear. If you were to just take yours off and put mine on and throw them back in you would probably get a noisy diff or possible a broken pinion or ring gear or even a carrier. If you take your parts to a shop they shouldn't charge to much to put it in. Let me know what you want to do. Quote: Originally Posted by 67chevemall So the 3:08's use a different carrier then my 3:73's? I need 3:08 gears and carrier. Is it good to "install everything then get it set up. Or just take all the parts to a good shop? Cheers BC Yes you need a differnt carrier for your 3.08 gears than what you have. I have both the gears and carrier if you want both. And no You need to take the parts to someone to install them for you. it won't work fo you to take it already installed cause they have to take them out again. __________________ They came out of my 73. The gears are nice and smooth, no grooves in them so yes they will work fine in a Daily driven truck Quote: Originally Posted by 67chevemall One last ? , What year trucks have the same 12 bolt rear ends? 67 to ? Cheers, 67-81. Hope that helps Cheers
__________________
1968 Chevy C10 307 3ott fleetside 1967 Chevy C/10 V8, 3spd, fleetside lwb.Sold 1967 Chev C/10 step, 383, M21. SOLD |
05-12-2005, 01:11 PM | #8 |
Keepin an eye out
Join Date: Feb 2003
Location: So.Cal
Posts: 3,920
|
Personally I wouldnt attempt this myself. This is a job that should be done by someone w/ experince. Im a decent back-yard mech. and this is one job I wouldnt do unless I was in the trial and error learning mode.
__________________
1970 Chevy C10 SWB 5.3 1996 Toyota Tacoma SR5 4x4 2007 Vespa GTS 250 Scooter ZIP 91351 |
05-12-2005, 03:09 PM | #9 |
Registered User
Join Date: Jan 2004
Location: Garland TX Dallas area
Posts: 658
|
You can get the dial indicator and stand for it at sears in the wood tool department about 85.00 you will need crush sleeve and shims and gear marking compound I got mine a GM dealer. There are allot of articles on the web about how to do it
__________________
1998 Pontiac Grad Prix GTP 1969 C10 396 TH400 3.08 posi |
05-12-2005, 06:15 PM | #10 |
Senior Member
Join Date: Apr 2003
Location: Elberton Ga.
Posts: 3,472
|
It may be cheaper and easier to find a good used 3.07 rearend and replace the whole thing. Around hear (Atlanta) they sell for about $225.00-$250.00 sometimes less if you can find one at a pull-a-part or pick-n-pull type junkyard.
|
05-13-2005, 07:12 AM | #11 | |
Bite me, import boy
Join Date: Apr 2005
Location: Eagle Point, Oregon
Posts: 102
|
Quote:
The money you may save by doing it yourself may cost you double when you have to get it done again later.
__________________
Jason '71 C-10 Deluxe-under construction '69 C20, 396,T400-donor truck, '65 C10 project "Facts are meaningless, You can use facts to prove anything that's even remotely true." |
|
05-13-2005, 10:52 AM | #12 |
Registered User
Join Date: Feb 2005
Location: Bay Area, California
Posts: 995
|
Thanks guys, I hear ya. I will call my mechanic and ask him to refer me to a good
gear shop to do this for me.
__________________
1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree |
05-13-2005, 11:06 AM | #13 | |
Registered User
Join Date: Dec 2004
Location: Arvada Colorado
Posts: 1,321
|
Quote:
I was going to do the same thing with a new gearset and an Eaton posi unit for my CST. I know that I am capable of doing it but it is pretty specialized so I called around here in Denver and found a guy that sets them up for a living. He did a wonderful job and he was reasonable. Good Luck.
__________________
Larry 1949 Willys CJ2A, Kubota Turbo Diesel engine, Warn Overdrive, 11 inch brakes, 12volt, Warn M8000 Winch "Little Green" 1970 Rustoleum Roller Red C20 Custom Camper 454 TH400 "Big Red" 1971 K20 6.2 Turbo Diesel 4x4 4spd Ranger Overdrive "Pumpkin Wagon" 2005 VW Beetle Diesel 44+ MPG "Silver Bullet" |
|
Bookmarks |
Thread Tools | |
Display Modes | |
|
|