My Rear End Build For My Low Buck Street/Race Truck

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Mark Jones

Full Access Member
Joined
Dec 2, 2018
Posts
179
Reaction score
506
Location
Horse Shoe Bay Tx/Thousand Oaks Ca
First Name
Mark
Truck Year
1979
Truck Model
C10
Engine Size
327
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
Well.
Dude says he's runnin 13.50 with open 3.08s..
Sounds like he's got it all figured out!
:waytogo:


I'm just getting started.................
 
Last edited:

CoggedBelt75

Full Access Member
Joined
Jul 31, 2010
Posts
41,451
Reaction score
170,298
Location
Oklahoma
First Name
Joe
Truck Year
1975
Truck Model
C10
Engine Size
383
Any dyno sheets?
 

Mark Jones

Full Access Member
Joined
Dec 2, 2018
Posts
179
Reaction score
506
Location
Horse Shoe Bay Tx/Thousand Oaks Ca
First Name
Mark
Truck Year
1979
Truck Model
C10
Engine Size
327
My rear end build has come to an end, now I have to
You must be registered for see images attach
You must be registered for see images attach
science all the rear suspension out in order to use the new rear end, feels like its trying to pitch the drive shaft, the pinion angle is wrong......it never ends.
 

Turbo4whl

Supporting Member
Supporting Member
Joined
Oct 30, 2019
Posts
3,158
Reaction score
7,328
Location
Downingtown, PA
First Name
Wayne
Truck Year
1974
Truck Model
Jimmy
Engine Size
350
Had 4:56 in the 53 with a all forged high nickle 283 bored .06 with Jahns forged pistons, stock forged crank, muncie 4 speed w/ modified competition plus, posi in back. Very fun truck, fast on the stop light street racing.

You must be registered for see images attach





You must be registered for see images attach

Look :happy107: I see a Holley on this old beast!

You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach



I'm just getting started.................

Another Holley on this race truck too!? Nice!

Before you slide the axles in your welded spool, paint a line the length of the axle. 1/4 mile guy once told me axles will twist about a full turn before they break. With the line painted you will be able to see how much they are twisting, you'll know when to replace them before they break.
 

Mark Jones

Full Access Member
Joined
Dec 2, 2018
Posts
179
Reaction score
506
Location
Horse Shoe Bay Tx/Thousand Oaks Ca
First Name
Mark
Truck Year
1979
Truck Model
C10
Engine Size
327
Look :happy107: I see a Holley on this old beast!



Another Holley on this race truck too!? Nice!

Before you slide the axles in your welded spool, paint a line the length of the axle. 1/4 mile guy once told me axles will twist about a full turn before they break. With the line painted you will be able to see how much they are twisting, you'll know when to replace them before they break.
I've done that before, but I did run aftermarket Mark Williams axels this time.
 

Mark Jones

Full Access Member
Joined
Dec 2, 2018
Posts
179
Reaction score
506
Location
Horse Shoe Bay Tx/Thousand Oaks Ca
First Name
Mark
Truck Year
1979
Truck Model
C10
Engine Size
327
My rear end build has come to an end, now I have to
You must be registered for see images attach
You must be registered for see images attach
science all the rear suspension out in order to use the new rear end, feels like its trying to pitch the drive shaft, the pinion angle is wrong......it never ends.


I put 4 degrees of negative pinion angle in there and clamped the front of the springs.........now I got something here, its coming together.
 

Mark Jones

Full Access Member
Joined
Dec 2, 2018
Posts
179
Reaction score
506
Location
Horse Shoe Bay Tx/Thousand Oaks Ca
First Name
Mark
Truck Year
1979
Truck Model
C10
Engine Size
327


Well phase 1 is done, rear end install with suspension work along with driveshaft angles aligned, with drive height set
You must be registered for see images attach
You must be registered for see images attach
You must be registered for see images attach
I still have the aluminum drive shaft to install, and light weight front rims, but I will test these changes one at a time. Going to the track Friday night.
 

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
30,633
Reaction score
28,905
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
Are those spring clamps there to reduce wheel hop if traction begins to break?
 

Mark Jones

Full Access Member
Joined
Dec 2, 2018
Posts
179
Reaction score
506
Location
Horse Shoe Bay Tx/Thousand Oaks Ca
First Name
Mark
Truck Year
1979
Truck Model
C10
Engine Size
327
Are those spring clamps there to reduce wheel hop if traction begins to break?
When I first installed the new rear end I had HORRIBLE wheel hop, I reset all the drive shaft angles, negative 3.7 degrees @ the differential, clamped the springs, smoothly just blows the tires off in 3 gears now with zero wheel hop with street tires.....now the question is what will it do at the track hooked up on slicks? I probably should have went the 5.38s, at my altitude you have no power, not even 300 pounds of TQ.

I have no science behind the spring clamps, had to try something.
 

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
30,633
Reaction score
28,905
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
When I first installed the new rear end I had HORRIBLE wheel hop, I reset all the drive shaft angles, negative 3.7 degrees @ the differential, clamped the springs, smoothly just blows the tires off in 3 gears now with zero wheel hop with street tires.....now the question is what will it do at the track hooked up on slicks? I probably should have went the 5.38s, at my altitude you have no power, not even 300 pounds of TQ.

I have no science behind the spring clamps, had to try something.

At first I thought they must not do anything at all because when the truck launches, the forward end of the lower leaves should be forced up against the upper leaves. But then with more thought, if the tires start to break traction it may unload those leaves and then begins the hop.
 

Poppy 87

Full Access Member
Joined
Oct 19, 2019
Posts
1,082
Reaction score
1,944
Location
Bloomingdale GA
First Name
John
Truck Year
1987
Truck Model
R10 Silverado
Engine Size
305
No idea, but my thought would be clamping the springs such as they are would almost duplicate shortening it thus changing spring rate? Poor man's ladder bar?
 

Forum statistics

Threads
44,422
Posts
957,412
Members
36,769
Latest member
Bowtie72
Top