The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1969 - 1972 Blazers and Jimmys Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-05-2007, 02:17 PM   #1
JaredCO
Registered User
 
Join Date: Jul 2007
Location: Colorado
Posts: 3
New to the forum

Hello everybody. I found the site while looking for parts for my new to me Blazer. A little history, my first vehicle was a 71 GMC Stepside. lowered. All through high school I owned and worked on 67-72 trucks, the best looking body style hands down. I had a 72 blazer, 350 pro jection(for a while) 4speed, 33's. Sold it because I'm not very smart. My best truck was a 72 SWB that I bagged, roll pans, it was bad. Once again because I'm not smart I sold it years ago.
I bought a 72 blazer about a month ago. It needs the usual rocker and floor work but overall very solid. 15k on a goodwrench rebuilt 350. I'm planning on getting the body in decent shape, fabbing some bumpers, a couple inches of lift. It will mainly be a hunting and wheeling rig, maybe a plow. Now for the Questions. I need to know of a way tofigure out the gear ratio. If it's not what I'm looking for what year axles are compatible? It has a three on the tree manual trans. Is a sm 465 a direct swap? I found a single wall top but it's missing a side window. Are the double wall windows the same? I'm sure I'll need some help but I think I found the right place. Thanks

Jared in CO
JaredCO is offline   Reply With Quote
Old 08-05-2007, 02:52 PM   #2
crzngmychvy
"1972 C5"
 
crzngmychvy's Avatar
 
Join Date: Jul 2004
Location: SoCal
Posts: 729
Re: New to the forum

Welcome from socal!
__________________
- 72 2wd Blazer ...sold...
2wd Blazer Page
crzngmychvy is offline   Reply With Quote
Old 08-05-2007, 03:44 PM   #3
65-72 chevytoys
Registered User
 
65-72 chevytoys's Avatar
 
Join Date: Dec 2006
Location: Wesley Chapel, Florida
Posts: 1,113
Re: New to the forum

Welcome you definatly came to the right place. Ways to figure out the gear ratio. 1. Pull the cover off the diff and find the ratio stamped on the ring gear. or 2. with the rear of the vehicle off the gound mark the drive shaft, turn the rear wheel 1 rotation and count the drive shaft revolutions.

Ex. If you turn the rear wheel 1 and the drive shaft turns 3x you have a 3.07 or 3.08 rear gears
__________________
2004 Chevy Silverado 1500LS SWB 5.3L
2004 Corvette Z16 #770
Wish I had not sold 72 blazer
65-72 chevytoys is offline   Reply With Quote
Old 08-05-2007, 05:26 PM   #4
JayDubBlazer
go cyclones
 
JayDubBlazer's Avatar
 
Join Date: Jun 2003
Location: Ames, IA
Posts: 1,883
Re: New to the forum

Welcom to the board chi-town
__________________
Wes



PROJECT OLE GREEN

1972 Blazer 4X4 350/700R4
2017 Silverado LT
JayDubBlazer is offline   Reply With Quote
Old 08-05-2007, 08:16 PM   #5
1971K54X4
Member
 
Join Date: Jan 2007
Location: Manchester, Iowa
Posts: 1,493
Re: New to the forum

from Iowa.
1971K54X4 is offline   Reply With Quote
Old 08-05-2007, 08:33 PM   #6
krue
Designated A-hole!
 
krue's Avatar
 
Join Date: Mar 2003
Location: South Mississippi
Posts: 36,448
Re: New to the forum

Welcome to the board from South Mississippi!
__________________
"If it ain't broke, fix it 'til it is!"
Being stupid ain't illegal.

We're Still Debt Free Except for the House!!!
www.daveramsey.com

70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e
93 S-10 "Poppaw's Truck"
krue is offline   Reply With Quote
Old 08-05-2007, 09:13 PM   #7
LUV2XCLR8
The LuvShack Garage
 
LUV2XCLR8's Avatar
 
Join Date: Jan 2004
Location: Maple Grove, TN (West Side)
Posts: 30,468
Re: New to the forum

From West TN
__________________
Owner/Op: "TN Classic Transport Carriers"
The Toy: "Square Vette" 72 Hybrid Blazer
Toy Barn: "LuvShack" 40 x 60 x 20 Shop
Tow Piggy:"Maddy" 88 Silverado 3500
Hauler: "Feathers" 14 Aluma 8218T
LUV2XCLR8 is offline   Reply With Quote
Old 08-05-2007, 09:13 PM   #8
eedgell
It's the air up here
 
eedgell's Avatar
 
Join Date: Mar 2007
Location: Western Colorado
Posts: 710
Re: New to the forum

Welcome from Western Colorado!! Post some pictures. I want to see.
__________________
1971 cheyenne k10 4 speed np 205 454 BB factory a/c

Never drink down stream of the herd!

Eric
eedgell is offline   Reply With Quote
Old 08-05-2007, 10:17 PM   #9
Jtrux
I'm a poor spectator
 
Jtrux's Avatar
 
Join Date: Aug 2006
Location: San Antonio, Tx
Posts: 2,287
Re: New to the forum

Yeah, it should bolt right in. I think the old bellhousing will even work with 465. you might need a different adapter for the transfer case though i'm not sure, someone else should know that for you.
__________________
2006 Jeep Unlimited IMPACT ORANGE

1993 Chevy 2500 4x4 ExCab LWB 454/NV4500 Tow rig

1977 Ford F100 2x4 LWB 1st truck I owned, still have it!!!

1979 Ford F150 4x4 SWB Built Ford Tough!!!

1971 Chevy Blazer 350 / SM465 / NP205 UNDER CONSTRUCTION Soon to have a LQ4 6.0!!!
Jtrux is offline   Reply With Quote
Old 08-06-2007, 09:42 AM   #10
Yukon Jack
Post Whore
 
Yukon Jack's Avatar
 
Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,686
Re: New to the forum

Welcome to the board. When I was contemplating swapping an SM465 in place of my three speed manual I had a few people tell me the bellhousing opeining for the tranny was slightly different sizes. I ended up doing a totally different swap so I never found out if that was correct. Just something for you to keep in mind.

In relation to the axle ratio question, I believe if you have an open differential you will need to turn the wheel two revolutions to determine the ratio. Best option is to go ahead and pull the cover. That way you are positive and can put in fresh lube while your at it.
__________________
1970 Blazer with a 400 sbc and 4" lift
1980 Pontiac Trans Am, 455 Oldsmobile
2012 Kawasaki Concours 14
Yukon Jack is offline   Reply With Quote
Old 08-06-2007, 05:34 PM   #11
JaredCO
Registered User
 
Join Date: Jul 2007
Location: Colorado
Posts: 3
Re: New to the forum

Thanks for the feedback fellas. I'm kinda retarded on the computer as far as posting pictures. Maybe I'll figure it out someday.
JaredCO is offline   Reply With Quote
Old 08-07-2007, 04:05 PM   #12
TonyJohnson
Registered User
 
TonyJohnson's Avatar
 
Join Date: Mar 2003
Location: Cheboygan, MI
Posts: 998
Re: New to the forum

Welcome, Jared. I know a Jared in Colorado. Did you race a yellow Camaro at Bandimere?
__________________
Tony Johnson
-- '71 Blazer w/L-31 Vortec 350, SM465, NP205, performer intake, edelbrock 1406, HEI, 4" lift, Boyd EFI tank, Vintage A/C My Blazer --
TonyJohnson is offline   Reply With Quote
Old 08-07-2007, 07:52 PM   #13
RED72blazer
urban fourwheelin
 
RED72blazer's Avatar
 
Join Date: Aug 2002
Location: Seattle
Posts: 1,007
Re: New to the forum

welcome from the 206....
__________________
1972 K5 Blazer with Cummins 4BT, NV4500 swap in the parts gathering stage.
RED72blazer is offline   Reply With Quote
Old 08-07-2007, 08:43 PM   #14
JaredCO
Registered User
 
Join Date: Jul 2007
Location: Colorado
Posts: 3
Re: New to the forum

No camaro. The only car I ever owned was a VW.
JaredCO is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 09:46 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com