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Old 11-27-2009, 01:57 PM
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Christmas gift request

Christmas gift request

Iím working on my wife to get a new rear end for Christmas. Ok guys calm down itís for my 36 Truck!

Doing rough measurements on paper, of a selection of wheel back spacingís and body width Iím ending up needing a rear end around 66Ē from wheel mounting surfaces on axel shafts.

To keep things consistent I would like to use something from GM possibly 1988 and up and 6 lug but not floating.

I have charts showing GM made OEM non floating 6 Lugs rear ends but canít find actual measurements to know what is even out there to work with.

To save money a junkyard find that I could refurbish and upgrade later would work. I could redesign but would like to keep extra body work down if I can.

So does anyone have information or know of a web site with GM rear end widths info?

Happy thanksgiving to all

And have a Christmas you will never forget Öand a new yearís party you find hard to remember.

Mike

Last edited by iceman36; 11-27-2009 at 04:17 PM. Reason: typo
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Old 12-02-2009, 02:09 PM
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from chevytrucks.org an article by Carl Ham shows a lot of rearend info http://www.chevytrucks.org/tech/ifs&rearend.htm
don't look at gm rearends only
the chart also says that your truck originaly had a 56-58" wide rear axle
any upgrade to the frontend like disc brakes will probably be 5 lug wheels
get a plan for the front too
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Old 12-02-2009, 04:33 PM
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RE: GM rear end widths info Christmas gift request

Thanks
Thatís a lot of reading but as soon as I have a chance Iím going to read the copy of it I made.

The 1936 truck is going to look the same as it started just upgrading / restro- mod.

I redesigned and installed 88-98 GM spindles that will from what Iím told are the same for 5 or 6 Lug but will check with SSBC first.

It show from information Iíve gathered rear ends in the early to lat 70s would have the width

* 106.5, 64.5, 63.0 -- 73-87 Chevy Blazer 2WD
* 106.5, 65.75, 62.75--73-87 Chevy Blazer 4WD
* 117.5, 65.8, 62.7 -- 73-87 Chevy C-10, K-10
* 131.5, 65.8, 62.7 -- 73-87 Chevy C-20, K-20, C30
* 164.5, 65.8, 62.7 -- 73-87 Chevy C-30 Crew Cab
* 129.5, 65.8, 62.7 -- 73-87 Chevy Suburban

The 6 Lug would be nice but 5 would work and a rear end in the 80s would be great.
But I havenít been able to find 80s information containing rear end widths for GM.
So I am spreading a wide net trying to find any business, person or web site that
has information to help me ID a year, make, or model with the width I need.
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Old 12-02-2009, 06:15 PM
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6 lug wheels have availabily issues, 5 lug are plentiful everywhere.
my 58 has an 86 trans am posi rear axle, i believe it is 61 1/2" wide
had to add spring pads as this was a coil spring car
also flipped my rear axle to match the rear height with the mustII front
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Old 12-02-2009, 09:18 PM
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RE: GM rear end widths info Christmas gift request

HI

I wish I had a rear end.

I know what you mean about the 6 Lug, but if i could find a 5 Lug of the correct
width i would be happy.

If i find one and have my heart set on the 6 Lug i may get axles made in better
times.

iceman
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Old 12-02-2009, 09:23 PM
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I'll try to get you the width backing plate to backing plate,or drum to drum if I can get the chance tomorrow. 8.5 10 Bolt in an 85 2wd Chevy.
Shane
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Old 12-02-2009, 09:53 PM
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RE: GM rear end widths info Christmas gift request

Thanks

That would be grate, so many salvage yards i have called, even ones that have rear ends out and on racks just wont check.

I needs to be as close to 66" wheel mounting surface to surface on axle as possible.

Thanks again

iceman
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Old 12-03-2009, 07:16 PM
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Only around 63" track width
http://www.chuckschevytruckpages.com/models.html
Shane
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