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#1 |
Registered User
Join Date: Jan 2007
Location: Goldsby,OK
Posts: 324
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what year rearend is best?
i have a 1969 swb. its a inline 6 and three speed on the tree. i am going to put a big block in it and i was wondering what are my opions on rearend exchange?
Last edited by 10.5stang; 04-23-2007 at 04:52 PM. |
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#2 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: what year rearend is best?
whats the plan with the truck... what's it's intended use?
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#3 |
Registered User
Join Date: Jan 2007
Location: Goldsby,OK
Posts: 324
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Re: what year rearend is best?
iam going to drive it alot! the motor is nothing very special. it made 490hp and is a pump gas motor. the trans is a 700r4 that i had built for the motor.
i am not going to drag race it, just want it to hold up. is there a rear end that is easy to find and replace the stock unit? thanks again for the help! matt |
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#4 |
Zappaphile!
Join Date: Apr 2007
Location: Los Banos, California
Posts: 228
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Re: what year rearend is best?
you might want to ask for advice from the person who built your transmission for you, or your engine builder..
I do however like the dana third members, if your doing a swap, you can get it rebuilt at the same time and have it geared however you want..
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1969 C20 LWB Camper Special - The Beater.. 1998 Cheyenne V6 - 4/6 Drop - For The Son |
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#5 |
Registered User
Join Date: Aug 2006
Location: Bakersfield,CA
Posts: 7,893
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Re: what year rearend is best?
put a ford 9in in it, strong and plenty of gear options
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-steven Alte Seele S.S. "Allison" '72 C/10 LWB 350SB/TH350 - DD PITBULL IS NOT A CRIME |
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#6 |
Registered User
Join Date: Aug 2006
Location: Bakersfield,CA
Posts: 7,893
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Re: what year rearend is best?
forgot to mention that it doesnt just bolt in, you do have to modify it a bit but i think its just the spring mounts
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-steven Alte Seele S.S. "Allison" '72 C/10 LWB 350SB/TH350 - DD PITBULL IS NOT A CRIME Last edited by GREASEMONKEY72; 04-24-2007 at 01:18 AM. |
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#7 |
Watch out for your cornhole !
![]() Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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Re: what year rearend is best?
The stock rearend is mighty strong. You'll be hard pressed to hook up hard enough to break it.
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I'm on the Instagram- @Gearhead_Kevin |
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#8 |
Registered User
Join Date: Jul 2006
Location: Central PA
Posts: 12,201
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Re: what year rearend is best?
you could always replace the axle shafts and carrier with stronger units and not have any issues. You should have a chevy 12-bolt...
__________________
The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer" |
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#9 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: what year rearend is best?
Even if it's built up, I'd say the tranny is the weak link.
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#10 |
Registered User
Join Date: Dec 2006
Location: Rhode Island
Posts: 602
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Re: what year rearend is best?
Chevy truck 12 bolt with a 3.42 posi or a 3.73 posi will serve your needs quite well, and for a long time. With the TH700's overdrive, I wouldn't go numerically lower than 3.42 and for the power and useage you've got in mind, a 12 bolt will be fine. A Ford 9-inch would be superior, but besides being a F#$%, it's overkill for your situation.
My Elky's BBC/TH700/3.55 combo turns about 2200 RPM at 60MPH and 2400 at 70 as I recall.
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69 C-10 SWB Fleetside 454/TH400 (For Sale) http://67-72chevytrucks.com/vboard/c...ct=1299&cat=12 70 El Camino 454 TH700 29 Model A 4-DR Sedan Deluxe |
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