53' Chevy w/ V8 swap...what rear end to run? - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 08-10-2011, 05:10 PM
Sixshooter45's Avatar
Registered User
 
Last photo:
Join Date: Jul 2011
Location: Lubbock, TX
Age: 27
Posts: 112
Wiki Edits: 0

Thanks: 28
Thanked 4 Times in 4 Posts
53' Chevy w/ V8 swap...what rear end to run?

Hello all, I have a 53 chevy 2 door post and I am in the process of pulling the engine and tranny and installing a mustang II front clip. It will also be getting a 500 hp 383 stroker and most likely a 700r4 or possibly TH350.

My question is, what rear end would y'all recommend I run? I currently has a torque tube rear end and small leaves. I will of course be upgrading to 2.5" leaves as well. I would like to do the rear end as cost effectively as possible. I have been told the stock rear is 60''. And I would like to be able to run a 8'' wide rear wheel, any recommendations on that? I know they can be narrowed, so what all is involved in that? based on the research I have done a 67-69 camaro rear is a popular swap, but is it stout enough for this application? I am pretty new to this so any and all help would be much appreciated.

BTW, the car will be used mainly for fun on the street with maybe a few passes once in a while.

Thanks again

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 08-10-2011, 05:21 PM
eloc431962's Avatar
Evil Wicked Mean And Nasty
 
Last wiki edit: Pilot bearing and bushings
Last journal entry: roof repair
Last photo:
Join Date: Nov 2008
Location: back in the garage.
Posts: 13,762
Wiki Edits: 37

Thanks: 50
Thanked 28 Times in 24 Posts
I would run either a 3.42 or 3.73 gear if it was me anyway, and either would be just fine for what you said it was going to be used for JMO. I like the 3.73 gear but the 3.42 would be more friendly on the open road but what it comes down to also it what converter and what will the rear tire size be, these play a big part when it comes to getting the correct gear for what you will have.
And also if it's the 8.5 rear camaro housing you talking about it can handle the HP IMHO. That's what's under my 67 camaro with 26 inch tires and 3.73 gears with a turbo 350 trans with IIRC a 3000 or 3500 stall and i myself love it.JMO


Cole
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 08-10-2011, 05:47 PM
helrazr3's Avatar
im on a highway to hell
 

Last journal entry: new wheels and seats
Last photo:
Join Date: Mar 2002
Location: billerica, mass
Age: 50
Posts: 689
Wiki Edits: 0

Thanks: 1
Thanked 1 Time in 1 Post
i would say go with a ford 9 inch they are fairly easy to find and there are so many used on different street rod projects im sure you can find one thats 60 inches you can even buy them brand new
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 08-10-2011, 06:17 PM
swvalcon's Avatar
Member
 

Last journal entry: rust on lt body shell
Last photo:
Join Date: Oct 2004
Location: mn
Age: 64
Posts: 1,016
Wiki Edits: 0

Thanks: 0
Thanked 11 Times in 11 Posts
I would stay with a 10 or 12 bolt gm rear. Not as strong as a 9" but takes less hp to turn.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 08-11-2011, 09:51 PM
Registered User
 
Join Date: Sep 2006
Location: Kansas City, MO
Posts: 134
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Rearend

From a practical point of view there are some things to consider before you go out and buy the wrong rearend:

1) Decide what tire and wheel you want to run. Place them under the car where they look right and have the proper clearance. Measure the distance between wheel mounting surfaces. That will be the overall length of the rearend you'll need.

2) Measure the diameter of the tire.

3) Determine which tranny you'll run because the 700R4's have an overdrive and will reduce your overall final gear ratio/engine rpm about 30%. Your 500 HP 383 won't like a 3.42 gear with 30" tires because the engine rpm will be WAY too low when your in overdrive. (3.42 x .7= 2.39:1 overall final rearend ratio)

Example: 70 MPH X 2.39/30 X 336 = 1874 RPM..... and a 383 that makes 500 HP won't like running at that low of an rpm.

A 350 or 400 tranny will be cruising at 2681 prm with the same 3.42 gear and the 3.73 will be at 2924 rpm at the same 70 mph.

With your tape measure in hand go to your local salvage yard and find a 9" Ford, 8 3/4 Chrysler or 12 Bolt GM rearend. Determine the ratio, buy it and stick it under the car. Worse case...you may have to buy, and install, the right ratio you want.

Whatever you do don't trick yourself into thinking you need the latest/greatest/most expensive rearend you can buy. This isn't a top fuel car with 6000 hp. Forget about trying to impress you buddies, they won't know the difference anyway.

Ron

For
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 08-11-2011, 10:52 PM
Sixshooter45's Avatar
Registered User
 
Last photo:
Join Date: Jul 2011
Location: Lubbock, TX
Age: 27
Posts: 112
Wiki Edits: 0

Thanks: 28
Thanked 4 Times in 4 Posts
I appreciate everyones replies, they have all been helpful. Ron's post above has me thinking maybe a overdrive trans (700r4) is not really necessary in this case; I will do more research on the TH350...plus, I like the price better

As for the ratio- I was planning to run a 3.73, so it sounds like the TH350 would be a fine choice and not be wrapped out when going down the highway at 70 with 3.73's...although I am unsure on the tire size right now. Even though this car will see very few highway miles I would like to have a decent all around setup.

And I decided on the 9" Ford simply because I know it is stout. More than needed for this setup...yes, I'm sure it is but I would rather have enough axle incase I decide to add more power in the future. So, I guess I'll start hunting around for a good one that will work in this application and if anyone has any additional advice I'm all ears.

Many Thanks
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 08-13-2011, 09:45 AM
Two8tyThree's Avatar
Registered User
 

Last journal entry: Picture of delivery
Last photo:
Join Date: Apr 2010
Location: Rocky Mountains
Posts: 105
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Don't dismiss the 8.8 Explorer rear end about as strong as a 12 bolt, the right width for your chebby and are quite economical in the bone yards. Also come with 3.42 or 3.73 gears and limited slip for free.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 08-13-2011, 10:21 AM
Sixshooter45's Avatar
Registered User
 
Last photo:
Join Date: Jul 2011
Location: Lubbock, TX
Age: 27
Posts: 112
Wiki Edits: 0

Thanks: 28
Thanked 4 Times in 4 Posts
What year explorer would I be looking for?
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 08-13-2011, 10:30 AM
Two8tyThree's Avatar
Registered User
 

Last journal entry: Picture of delivery
Last photo:
Join Date: Apr 2010
Location: Rocky Mountains
Posts: 105
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Measure your rear end width, then go to the pick and pull and find an Explorer rear end within +/- 1". A bit narrower is better wider rims can be used. I believe yours is about 60" if I remember correctly. You will need to weld on spring perches, buy them a Chrysler dealer.
Do a search on 8.8 Explorer rear ends on the web there is tons of info about them. Offroaders have been using them for years. The newer ones also come with rear disc brakes too.

here's a great link to read:
http://www.therangerstation.com/tech_library/Axles.html

PS - a mustang 8.8 rear end might be the right width for you.

Last edited by Two8tyThree; 08-13-2011 at 10:38 AM.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 08-13-2011, 10:41 AM
Sixshooter45's Avatar
Registered User
 
Last photo:
Join Date: Jul 2011
Location: Lubbock, TX
Age: 27
Posts: 112
Wiki Edits: 0

Thanks: 28
Thanked 4 Times in 4 Posts
Great I will sure look into it. And yes the rear in my car is 60". I would like to find a 58.5" or 59" as you mentioned to run wider rear wheels. And you think it would be plenty strong for a street car with a 500hp engine?

Thanks
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 08-13-2011, 10:44 AM
Two8tyThree's Avatar
Registered User
 

Last journal entry: Picture of delivery
Last photo:
Join Date: Apr 2010
Location: Rocky Mountains
Posts: 105
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Got a buddy with a Mustang that runs on the strip. It runs 10.20's with an 8.8 and 4.11 gears with no problems.

Here read this:
http://www.therangerstation.com/tech...plorer8_8.html

Last edited by Two8tyThree; 08-13-2011 at 10:52 AM.
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 08-13-2011, 10:49 AM
Sixshooter45's Avatar
Registered User
 
Last photo:
Join Date: Jul 2011
Location: Lubbock, TX
Age: 27
Posts: 112
Wiki Edits: 0

Thanks: 28
Thanked 4 Times in 4 Posts
Well I'd say it's plenty stout for my application then, I appreciate the advice and i'll start looking around for one (hoping to find a 31 spline)
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 08-14-2011, 08:54 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 12,975
Wiki Edits: 326

Thanks: 765
Thanked 1,023 Times in 855 Posts
The rear track on your car is 58.75". That's centerline of the left rear tire to the centerline of the right rear tire.
Cars that are close are '68-'74 Buick Apollo at 58.8", 78-86 Buick Century, Monte Carlo, Malibu, El Camino, Cutlass and Grand Prix at 58.8".

Mopars would have an 8 3/4" rear and the candidates are the '75-'79 Dodge Aspen and Plymouth Volare at 59 inches.

Some cars are listed with only the rear axle flange to axle flange. In my experience, this measurement is very close to "track". Candidates include the 57.0" rear from a '71-'74 V8 Maverick (an 8" rear) and all '75-'77 5-lug Mavericks. I'd try to find an 8" out of a Maverick first, simply because they were slung on leaf springs and already have a spring mount welded on.

I'm not sure, but I think the Fox body Mustangs are close also and came with a very nice 8.8" differential.

Closing up the rear of the pack is the '49-'51 Ford and the '57-'59 (9-inch rear) Ford with axle flange to axle flange 57.0"
Reply With Quote Quick reply to this message

Recent Hotrodding Basics posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
88 to 72 Chevy, 1/2 ton rear end swap hippybilly Transmission - Rearend 8 01-03-2011 07:15 PM
Chevy rear end swap Truplayainfla Introduce Yourself 1 10-23-2004 11:07 PM
1954 Chevy car rear end swap help! gunner_xm192 Transmission - Rearend 1 10-18-2004 02:17 AM
rear end swap for 1950 chevy w/ 350 blake Transmission - Rearend 2 10-10-2004 08:51 AM
rear end swap into 61 chevy 61wagonair Transmission - Rearend 1 07-07-2003 08:35 PM


All times are GMT -6. The time now is 12:29 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.