• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

welding up an 8.8


.40cal

New Member
Joined
Jan 25, 2011
Messages
10
Reaction score
0
Points
0
Location
Somewhere in the sticks in South Carolina
Vehicle Year
1998
Make / Model
Ford
Engine Size
4.0
Transmission
Manual
I was wondering if welding up an 8.8 posi was possible / reliable. I've never welded up a rear end, but had friends who swear by it. Is it even worth it to do to a posi rear end?:icon_welder:
 


Boggin

Well-Known Member
Joined
Nov 3, 2007
Messages
5,711
Reaction score
48
Points
48
Transmission
Manual
Talk to 86slo-vo. He been running a welded 8.8 for over 2 years and he daily drives it. People on this site either love it or hate it
 

Capt Jay

New Member
V8 Engine Swap
Solid Axle Swap
Joined
Aug 10, 2007
Messages
1,741
Reaction score
25
Points
0
Location
Minnesota
Vehicle Year
'93 body.
Make / Model
Ford(ish)
Engine Size
302
Transmission
Automatic
I've been wheeling my welded 8.8 for about 5-6 years and have never had a problem. First you have to know how to weld it correctly. If you don't and it lets loose, it will granade the entire thing. Second, I wouldn't drive it on the street. Even pulling my truck on a car dolly, it eats tires like they are going out of style. A locked rear end on the street also puts a lot of stress on the shafts. If the rear end is posi there isn't any reason to weld it unless your doing hard core off road.
 

.40cal

New Member
Joined
Jan 25, 2011
Messages
10
Reaction score
0
Points
0
Location
Somewhere in the sticks in South Carolina
Vehicle Year
1998
Make / Model
Ford
Engine Size
4.0
Transmission
Manual
A locked rear end on the street also puts a lot of stress on the shafts. If the rear end is posi there isn't any reason to weld it unless your doing hard core off road.
Yea, thats what I needed to know. Didnt really know if there was any real benefit to it or not. I just assumed that a posi rear wasnt really "splitting" the power 50/50 to each tire like a "locked" rear would.

Doesn't a posi transfer just some of the power to the wheel with traction?
 

martin

New Member
Joined
Aug 6, 2007
Messages
3,218
Reaction score
26
Points
0
Age
77
Location
St Bruno, Quebec
Vehicle Year
1984
1991
Make / Model
ford
Transmission
Manual
If you do the extra clutch mod on the lsd and pack it as tight as it will go it works very well, unless you get one wheel off the ground, then all bets are off.
 

Capt Jay

New Member
V8 Engine Swap
Solid Axle Swap
Joined
Aug 10, 2007
Messages
1,741
Reaction score
25
Points
0
Location
Minnesota
Vehicle Year
'93 body.
Make / Model
Ford(ish)
Engine Size
302
Transmission
Automatic
Doesn't a posi transfer just some of the power to the wheel with traction?
No. Power, water and electricity will always go the path of least resistance. It does NOT transfer power to the wheel with traction. It is done mechanically so it has no logic to transfer power away from a spinning tire. It just splits the power but will allow one tire to turn faster than another. This is critical in allowing the outer tire to turn faster when going around a corner.
 

igiveup

New Member
Joined
Aug 10, 2007
Messages
426
Reaction score
2
Points
0
Age
54
Location
Edmonton Ab. Canada
Transmission
Automatic
Hello

I welded my 7.5 up about 2 1/2 years ago and no problems so far. On dry pavement I can feel it hopping. In mud its great.

igiveup
 

86 slo-vo

02/2011 OTOTM Winner
OTOTM Winner
TRS Banner 2010-2011
Joined
Jan 5, 2009
Messages
4,510
Reaction score
36
Points
0
Location
owensboro, KY
Vehicle Year
1994
Make / Model
ford
Engine Size
4.0
Transmission
Manual
Talk to 86slo-vo. He been running a welded 8.8 for over 2 years and he daily drives it. People on this site either love it or hate it
i only ran the welded rear for about 8 months, i had no problems though other then being hard on tires...that being said if i didnt have the detroit in the rear now it would be welded and when i swap to a sterling 10.25 i will most likely be going back to the welded carrier
 

Boggin

Well-Known Member
Joined
Nov 3, 2007
Messages
5,711
Reaction score
48
Points
48
Transmission
Manual
liar... Told me you ran it 2 years lol
 

86 slo-vo

02/2011 OTOTM Winner
OTOTM Winner
TRS Banner 2010-2011
Joined
Jan 5, 2009
Messages
4,510
Reaction score
36
Points
0
Location
owensboro, KY
Vehicle Year
1994
Make / Model
ford
Engine Size
4.0
Transmission
Manual
nah might have been a year, but it wasnt my first welded axle...first rbv axle though
 

Boggin

Well-Known Member
Joined
Nov 3, 2007
Messages
5,711
Reaction score
48
Points
48
Transmission
Manual
ok,, maybe it wasnt you lol but there is someone who told me they done it for at least 2 yeare
 

86 slo-vo

02/2011 OTOTM Winner
OTOTM Winner
TRS Banner 2010-2011
Joined
Jan 5, 2009
Messages
4,510
Reaction score
36
Points
0
Location
owensboro, KY
Vehicle Year
1994
Make / Model
ford
Engine Size
4.0
Transmission
Manual
.

ok,, maybe it wasnt you lol but there is someone who told me they done it for at least 2 yeare

ahem......


Hello

I welded my 7.5 up about 2 1/2 years ago and no problems so far. On dry pavement I can feel it hopping. In mud its great.

igiveup
.
 

Boggin

Well-Known Member
Joined
Nov 3, 2007
Messages
5,711
Reaction score
48
Points
48
Transmission
Manual
lol nope i dont think it was him, it was someone with an 8.8
 

Sponsored Ad


Sponsored Ad

Staff online

Member & Vendor Upgrades

For a small yearly donation, you can support this forum and receive a 'Supporting Member' banner, or become a 'Supporting Vendor' and promote your products here. Click the banner to find out how.

Truck of The Month


Shran
April Truck of The Month

Recently Featured

Want to see your truck here? Share your photos and details in the forum.

Follow TRS On Instagram

TRS Events

25th Anniversary Sponsors

Check Out The TRS Store


Sponsored Ad


Sponsored Ad

Sponsored Ad


Amazon Deals

Top