Need help with REAR end selection!!!! - Ford Truck Enthusiasts Forums



1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

Need help with REAR end selection!!!!

Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 01-22-2014, 09:23 PM
Mitch01675's Avatar
Mitch01675 Mitch01675 is offline
Freshman User
Thread Starter
 
Join Date: Aug 2013
Location: Columbus, GA
Posts: 44
Mitch01675 is starting off with a positive reputation.
Need help with REAR end selection!!!!

Here is what I am running. I am installing a 302/340 horse crate motor running a C4 transmission that I already have. I was wanting to install a Ford 8.8 out of an explorer with the disc breaks and locker. So my question remains is what size gears would I need to have in the rear end to be the best. I was thinking of 373 locker. Any suggestions. Thanks for all the knowledge.

Mitchell
Reply With Quote
  #2  
Old 01-22-2014, 10:07 PM
das54's Avatar
das54 das54 is offline
Elder User
 
Join Date: Jan 2011
Location: Newberg, OR
Posts: 802
das54 has a very good reputation on FTE.das54 has a very good reputation on FTE.das54 has a very good reputation on FTE.
what size tires. I have 235-75R15 that are about 29" dia., a 2.91 rear and 4 speed AT. At 70 mph the engine is turning 2360 rpm in 3rd, 1652 in 4th. A little low but probably ok with a torquey engine and not pulling a load. A 3.73 rear would be running 3026 in 3rd and 2118 in 4th. A 3.50 about halfway between these 2. I might pull my camper trailer with mine so I might go looking for 3.50 - 3.73 gears some day.
Reply With Quote
  #3  
Old 01-22-2014, 10:58 PM
Mitch01675's Avatar
Mitch01675 Mitch01675 is offline
Freshman User
Thread Starter
 
Join Date: Aug 2013
Location: Columbus, GA
Posts: 44
Mitch01675 is starting off with a positive reputation.
Front Tires are going to be 255/40/18 and the rear tires are going to be 285/30/20. I am believing the 373 gears should be fine. Not doing any real hauling with the truck or towing a camper. Just a weekend rod and maybe a beach trip or two. Thanks
Reply With Quote
  #4  
Old 01-23-2014, 12:32 AM
das54's Avatar
das54 das54 is offline
Elder User
 
Join Date: Jan 2011
Location: Newberg, OR
Posts: 802
das54 has a very good reputation on FTE.das54 has a very good reputation on FTE.das54 has a very good reputation on FTE.
26.7 in diameter tires with 3.73 rear and C4 tranny you'll be turning 3287 rpm at 70 mph. Seems a bit high. I've read that the Explorers also had 3.27 and 3.55 trac-loc rears but seems the 3.73 is most common. Your's will be pretty quick off the line with a 3.73 and those wide meats out back. Good luck with your build.
Reply With Quote
  #5  
Old 01-23-2014, 09:41 AM
56panelford's Avatar
56panelford 56panelford is offline
Posting Legend
 
Join Date: Oct 2005
Location: Ontario,Canada
Posts: 83,952
56panelford has a superb reputation56panelford has a superb reputation56panelford has a superb reputation56panelford has a superb reputation56panelford has a superb reputation56panelford has a superb reputation56panelford has a superb reputation56panelford has a superb reputation56panelford has a superb reputation56panelford has a superb reputation56panelford has a superb reputation
Tight and firm is the way I like em!
Reply With Quote
  #6  
Old 01-23-2014, 11:57 AM
Wayne Waldrep's Avatar
Wayne Waldrep Wayne Waldrep is offline
Elder User
 
Join Date: Aug 2012
Location: Cuba, AL (NO internet)
Posts: 747
Wayne Waldrep has a very good reputation on FTE.Wayne Waldrep has a very good reputation on FTE.Wayne Waldrep has a very good reputation on FTE.Wayne Waldrep has a very good reputation on FTE.
I was considering an explorer 8.8 in mine. My local wrecking yard had about 20 explorers. The majority of them were 3.55 drum rear ends. All the others were 3.73 with either drum or disc. The tag will show 3L73 if it is traction lock and just 373 if its open. My personal preference with a C4 would be the 3.55. That engine has more than enough torque to handle a more highway friendly gear. Of course I'm not a C4 fan really....I like the AOD.
Reply With Quote
  #7  
Old 01-23-2014, 12:09 PM
Mitch01675's Avatar
Mitch01675 Mitch01675 is offline
Freshman User
Thread Starter
 
Join Date: Aug 2013
Location: Columbus, GA
Posts: 44
Mitch01675 is starting off with a positive reputation.
Just picked up a 8.8 with 327 with locker and disc brakes for $300 and they are pulling it out for me. Be ready in the morning. We live in a small town and really won't be on highway with the truck to often.
Reply With Quote
  #8  
Old 01-23-2014, 02:42 PM
Wayne Waldrep's Avatar
Wayne Waldrep Wayne Waldrep is offline
Elder User
 
Join Date: Aug 2012
Location: Cuba, AL (NO internet)
Posts: 747
Wayne Waldrep has a very good reputation on FTE.Wayne Waldrep has a very good reputation on FTE.Wayne Waldrep has a very good reputation on FTE.Wayne Waldrep has a very good reputation on FTE.
Quote:
Originally Posted by Mitch01675 View Post
Just picked up a 8.8 with 327 with locker and disc brakes for $300 and they are pulling it out for me. Be ready in the morning. We live in a small town and really won't be on highway with the truck to often.
Congrats!! That's perfect in my book.
Reply With Quote
  #9  
Old 01-23-2014, 09:08 PM
Mitch01675's Avatar
Mitch01675 Mitch01675 is offline
Freshman User
Thread Starter
 
Join Date: Aug 2013
Location: Columbus, GA
Posts: 44
Mitch01675 is starting off with a positive reputation.
Alright guys without me starting a new thread seeing if yall might have any advice. With the new 8.8 rear end I am planning on installing 20x10 in the rear and 18x8 in the front. Do I Have to install widened rear fenders or do you think I would be able to retain stock rear fenders. These are smooth steel wheels.

Thanks

Reply With Quote
  #10  
Old 01-23-2014, 09:58 PM
56panelford's Avatar
56panelford 56panelford is offline
Posting Legend
 
Join Date: Oct 2005
Location: Ontario,Canada
Posts: 83,952
56panelford has a superb reputation56panelford has a superb reputation56panelford has a superb reputation56panelford has a superb reputation56panelford has a superb reputation56panelford has a superb reputation56panelford has a superb reputation56panelford has a superb reputation56panelford has a superb reputation56panelford has a superb reputation56panelford has a superb reputation
Do you have more than 12 inches between the box and fender lip, backspacing and ride hieght? There was only 6 '' rims originally
Reply With Quote
  #11  
Old 01-28-2014, 08:42 PM
Mitch01675's Avatar
Mitch01675 Mitch01675 is offline
Freshman User
Thread Starter
 
Join Date: Aug 2013
Location: Columbus, GA
Posts: 44
Mitch01675 is starting off with a positive reputation.
Well got my 8.8 rear end. Stripped it down, replaced rotors, pads, bearings, and flushed and refilled oil. Painted it black and painted diff cover the color truck will be. I know I have to cut old perches off but just couldn't stop. Good to see it looking nice though.

[IMG]<a href="http://s1371.photobucket.com/user/mitchellbwhite/media/Ole%20Bessie/IMG_7050_zps40b2ae04.jpg.html" target="_blank"><img src="http://i1371.photobucket.com/albums/ag288/mitchellbwhite/Ole%20Bessie/IMG_7050_zps40b2ae04.jpg" border="0" alt=" photo IMG_7050_zps40b2ae04.jpg"/></a>[/IMG]

[IMG]<a href="http://s1371.photobucket.com/user/mitchellbwhite/media/Ole%20Bessie/IMG_7051_zpsc1510941.jpg.html" target="_blank"><img src="http://i1371.photobucket.com/albums/ag288/mitchellbwhite/Ole%20Bessie/IMG_7051_zpsc1510941.jpg" border="0" alt=" photo IMG_7051_zpsc1510941.jpg"/></a>[/IMG]

[IMG]<a href="http://s1371.photobucket.com/user/mitchellbwhite/media/Ole%20Bessie/IMG_7052_zps98b5a139.jpg.html" target="_blank"><img src="http://i1371.photobucket.com/albums/ag288/mitchellbwhite/Ole%20Bessie/IMG_7052_zps98b5a139.jpg" border="0" alt=" photo IMG_7052_zps98b5a139.jpg"/></a>[/IMG]
Reply With Quote
  #12  
Old 01-28-2014, 08:53 PM
avf100's Avatar
avf100 avf100 is offline
Senior User
 
Join Date: Oct 2010
Location: Lancaster, CA.
Posts: 490
avf100 has a great reputation on FTE.avf100 has a great reputation on FTE.avf100 has a great reputation on FTE.avf100 has a great reputation on FTE.avf100 has a great reputation on FTE.
Quote:
Originally Posted by Mitch01675 View Post
Alright guys without me starting a new thread seeing if yall might have any advice. With the new 8.8 rear end I am planning on installing 20x10 in the rear and 18x8 in the front. Do I Have to install widened rear fenders or do you think I would be able to retain stock rear fenders. These are smooth steel wheels.

Thanks


I think 10 " will be to wide if the truck is lowered. I have 17X8 with 235/55-17 tires and have about 1/2 " clearance on each side of the tire. (bedside & fender side)
Reply With Quote
  #13  
Old 01-28-2014, 09:09 PM
Mitch01675's Avatar
Mitch01675 Mitch01675 is offline
Freshman User
Thread Starter
 
Join Date: Aug 2013
Location: Columbus, GA
Posts: 44
Mitch01675 is starting off with a positive reputation.
I have conceded to getting a set of 20x8 steel smoothies from Detroit Wheel Company. Gonna have them powder coated to match truck.
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Aussie Locker: First Impression natewoz Offroad & 4x4 7 12-30-2015 09:05 AM
Detroit locker install question Bird Hunter 1994.5 - 1997 7.3L Power Stroke Diesel 23 10-01-2012 01:14 PM
Locker for 2wd trailrider121 1987 - 1996 F150 & Larger F-Series Trucks 51 02-20-2012 05:22 PM
difference between the 86 8.8 and the 87 8.8? dakota-boy 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks 3 01-02-2011 11:18 PM
How many splines? Which locker? bigdooky 1978 - 1996 Big Bronco 8 11-06-2002 07:43 PM


Go Back   Ford Truck Enthusiasts Forums >

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -5. The time now is 10:59 PM.