NOTE: 3/26/2020 WE ARE SHUTTING DOWN THIS FORUM IN THE NEXT COUPLE OF WEEKS

Home of all dually trucks with the GMC/Chevy 3500HD series truck a point of interest.

By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please register for an account above!

You can appreciate the “beef” of the GMC/Chevy 3500HD trucks, a stripped rolling 3500HD chassis weighs more than a running C1500!

When posting on this site you won't have to explain what the 3500HD Beast is! ie 19.5 wheels, straight axle, 10 bolt wheels, 15000lbs GVW, 4 Wheel Disc Brakes etc

We are based in the U.S. If you are not from the U.S. or Canada (all IP addresses checked) you will be rejected. If you are a legit overseas applicant, contact me via email: borderdrop@yahoo.com

3500HD.com forum created October 2009 WILL BE SHUTTING DOWN

Author Topic: Rear Wheel Bolt Pattern Discrepancy  (Read 762 times)

bridgepainter

  • Single Axle Driver
  • *
  • Posts: 17
Rear Wheel Bolt Pattern Discrepancy
« on: December 10, 2019, 10:50:10 PM »
I'm swapping the wheels and tires from my single cab 2001 HD to my 1994 crew cab conversion HD, done by Alton.  I'm swapping them because the set of wheels on the '01 are freshly painted and the tires are brand new.

The front wheels swapped over fine.  The rears, when I went to make the swap, do not fit.  The '94 has a rear axle bolt pattern of 10 x 8.5", and the 2001 has a rear axle bolt pattern of 10 x 7.25".  What gives?  What do I have to do to make these wheels fit these trucks?  Swap the rotor / hub assemblies?  Why are they different?

Frustrated as all hell.  Thanks in advance.

jd8420

  • One Ton Driver
  • **
  • Posts: 58
  • Age: 51
  • Location: Texas
Re: Rear Wheel Bolt Pattern Discrepancy
« Reply #1 on: December 11, 2019, 12:32:42 AM »
Sound like someone swapped in a rear axle from a newer Ford F450, F550 Dodge 4500 or 5500. Should be 10 on 225mm or 8.86" bolt pattern.
« Last Edit: December 11, 2019, 01:19:49 AM by jd8420 »
3500HD 4X4 454/NV4500

bridgepainter

  • Single Axle Driver
  • *
  • Posts: 17
Re: Rear Wheel Bolt Pattern Discrepancy
« Reply #2 on: December 11, 2019, 09:08:45 AM »
Thank you for the insight. The axle housings look almost identical, the RPO sticker is worn off of the '94 but I'm pretty sure that they're both Dana 80s. Should everything else on these axles be transferable? As in, should I be able to swap the rotors / hubs between these two trucks so that I can keep the wheels? I'd like to get the nice matching set on the '94, I'm getting the '01 ready for sale.

jd8420

  • One Ton Driver
  • **
  • Posts: 58
  • Age: 51
  • Location: Texas
Re: Rear Wheel Bolt Pattern Discrepancy
« Reply #3 on: December 11, 2019, 08:41:53 PM »
I doubt anything is the same except the yoke, ring and pinion and differential. 3500HD's have very unique axles shafts that spline into the hub.
3500HD 4X4 454/NV4500

bridgepainter

  • Single Axle Driver
  • *
  • Posts: 17
Re: Rear Wheel Bolt Pattern Discrepancy
« Reply #4 on: December 12, 2019, 01:16:29 AM »
That's rough.  Might just have to pony up for some U-bolts and swap the whole axles.  I'm less worried about having all of the nice shiny wheels and tires (although that is a plus) than I am about being able to properly rotate the tires, which I won't be able to do if they're different front and back.

 


LINK SECTION - FEEL FREE TO SUGGEST ANY LINKS (YOURS INCLUDED).



DIESEL HUB
DIESEL PLACE
EAST COAST GEAR SUPPLY
3500HD King Pin Replacement
4BT and Diesel Swaps
King Pin Tech Tip pdf
JEEP ENGINE GUIDE pdf MOPAR
KING PIN THREAD
JEEP WRANGLER WIRING DIAGRAMS
MILLER TIG Welding Calculator
TBI CHIPS.COM
VINTAGE CHEVY/GM FORUM
HYDRO-BOOST LEAKING? Fix it for $6.50