![]() |
|
![]() |
#1 |
Registered User
Join Date: May 2007
Location: red deer, alberta
Posts: 4
|
3/4 to 1/2 ton switch
so i have a 69 longhorn. i have already swapped my front end over to half ton hubs with the conversion spindles, and now it's time to swap the rear end out. just wondering what i should be looking for when i pick up a 1/2 ton rear end. i know it should be pre 86? and 2wd. can i just grab any rear end and it will fit? also, should i swap the 1/2 leaf springs in for the 3/4 ton ones? i dropped the front 3 1/2 in, so the back will need to be dropped 5 in or so, and i will be wanting to put a disc brake kit on the back. any help i can get is appreciated, i want to get this truck rolling!
|
![]() |
![]() |
![]() |
#2 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
|
Re: 3/4 to 1/2 ton switch
welcome to the insanity.
I'll move this off the engine and drive train page, and put it on the main truck board. |
![]() |
![]() |
![]() |
#3 |
Registered User
Join Date: Oct 2002
Location: Parksville, B.C. Canada
Posts: 637
|
Re: 3/4 to 1/2 ton switch
The rear trac-bar & bracket is different(on the frame) you'll need to take the 3/4 ton bracket out (drilling and/or grinding rivets out, yeah) and swap in the 1/2 ton bracket/trac bar(more drilling and grinding) also the brake lines and hoses may be a different size, 3/16" for 1/2 ton and 1/4" for 3/4 ton I beleive.
__________________
1969 G.M.C 3/4 Ton 920 (Canadian Version) 307 3 speed, currently apart 1998 Chevy 1/2 ton ex cab V-6 5 speed 1967 Chevy SWB - project truck; not started just yet |
![]() |
![]() |
![]() |
#4 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
|
Re: 3/4 to 1/2 ton switch
What I did on mine......I used a 75 -12bolt axle, flipped over top of the springs. The stock leafs were brought down to a 4 leaf, by discarding the flat helper & bottom 3 leafs. this actually set the truck too low , so the spring hangers were removed from the frame, & moved downward to lift it back up a tad. I used grade 8 -7/16" bolts & pinchloc nuts on the assy. This worked out to be a 5-5 1/2" drop(cheap, but labor intensive). The spring saddles on the 75 diff dont line up with the longhorn spring centers, so you need to cut them off, & use aftermarket saddles(Direct connection pcs work), & have the U bolts & plates made up. crazyL
__________________
69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
![]() |
![]() |
![]() |
#5 | |
Registered User
Join Date: May 2007
Location: red deer, alberta
Posts: 4
|
Re: 3/4 to 1/2 ton switch
Quote:
|
|
![]() |
![]() |
![]() |
#6 |
Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,403
|
Re: 3/4 to 1/2 ton switch
Go www.webshots .com, look for hotrodhorn.....if you need a password, type in MuFFy. I sure cant answer your ? on the rear springs(havent tryed it)
![]()
__________________
69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
![]() |
![]() |
![]() |
#7 | |
*************
![]() Join Date: Apr 2005
Location: Pensacola, FL
Posts: 17,846
|
Re: 3/4 to 1/2 ton switch
Quote:
__________________
Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3 |
|
![]() |
![]() |
![]() |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|