Chevy 3100 stock rear end HP capability - Hot Rod Forum : Hotrodders Bulletin Board -- Hot Rod Forum

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

LinkBack Thread Tools
  #1 (permalink)  
Old 06-28-2011, 07:33 AM
Registered User
Join Date: Jan 2011
Location: Ohio
Posts: 13
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Chevy 3100 stock rear end HP capability

Hey fellas,
My truck has the inline 216 in it and I am trying to plan out what to do with the engine, transmission, driveline, and rear end.

I know I am updating the transmission and I am leaning towards swapping in a 235 inline 6 or a small v8 such as the 283. The 216 just has very little power. I'm not intrerested in extreme power, just would like to be able to cruise the highway comfortably.

So my question is, what will the stock rear end handle in the 3100? If the stock rear end will handle the 283 or 327 I may keep it in place.
I know it will handle the 235 but not sure about the 283 or 327.



Last edited by shep2; 06-28-2011 at 07:51 AM.
Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 06-28-2011, 12:26 PM
Registered User
Last photo:
Join Date: Jun 2010
Location: Syracuse, NY
Posts: 3,848
Wiki Edits: 0

Thanks: 3,099
Thanked 655 Times in 540 Posts
HP doesnt break axles...Torque does.

That being said, if you're going to drive like my Drivers Ed teacher wanted us to...It'll be fine with a mild 283 or 327, especially if you're using an automatic.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 06-28-2011, 01:45 PM
Registered User
Last wiki edit: Mopar tapered axle rear brake conversion
Last journal entry: What I'm doing now...
Last photo:
Join Date: Jan 2002
Posts: 4,263
Wiki Edits: 49

Thanks: 0
Thanked 8 Times in 7 Posts
If your truck has the original rear end with the original gearing you'll probably want to swap it out anyway. The 1/2 ton trucks had a torque tube driveshaft which isn't compatible with a modern transmission and the stock gearing is way to high for comfortable highway speeds. These trucks were designed for dirt roads and normal cruising speeds of around 40 mph. Out on the highway that little 216 would be screaming at 60... if you could get going that fast.

So... the solution is a mid 70's Camaro or Firebird 10 bolt rear end. They're the correct width, they're plentiful, have decent gearing, and if you don't want a posi it will be pretty inexpensive. It will also be compatible with whatever modern GM trans you might want to use.

Good luck.


The most important things you learn are those things you learn AFTER you know it all. -- Chip Foose
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


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
rear differential for a 51 chevy 3100 50bowTie Transmission - Rearend 3 06-18-2011 11:51 AM
stock g body rear end capability!? djohnson308 Transmission - Rearend 5 06-12-2011 06:31 AM
IFS Mustang II for my 53 Chev 3100 W/stock ride hight? zachscc Suspension - Brakes - Steering 1 02-07-2009 08:36 PM
Ford 9" rear end vs stock 89 chevy truck rear end jimmy p Transmission - Rearend 2 12-07-2005 03:28 AM
Corvette rear end in a 51 Chevy p/u 3100 oldford Transmission - Rearend 2 04-30-2002 12:33 PM

All times are GMT -6. The time now is 02:20 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999 - 2012. All Rights Reserved.