Ford 8.8 Repairs to date - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 10-13-2000, 10:38 AM Thread Starter
 
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Ford 8.8 Repairs to date

Just a little update on the 8.8 repair.
The shop that is working on the axle, is allowing me to work with one of their mechanics after hours to get this thing repaired.
So far we we have pressed the rotated side axle tube from the the housing and pressed it back on in the correct position. It was then checked for straightness(A-OK).
We then placed the axle in a large oven and brought the entire axle up to a good welding temperature to achieve a good weld between the cast housing and the tubes(I think he said around 500 degrees ???).Then a full penetration weld was placed around both tubes at the housing. Then the 3 holes at the housing were drilled through the tubes and hardened steel pins were pressed in, then welded inside and out, and ground smooth on the inside.
The axle shafts, bearings, ring and pinion and Detroit Locker, are all in very good shape so everything appears to be holding up well to the trail abuse. Im having the drive line shop perform the gear set up today. And the leaf packs are supposed to be complete from the spring shop this morning(re arched).
The axle shop says that the repair that we did, holds up great on the Ford 9" and 8.8" that they use in their drag racers. This would not be very expensive, or complicated to perform durring a gear swap,(when everything was apart anyway). Most axle shops could easily handle it, the only tricky part is getting a good weld between the housing and tubes, due to the different metals.
I think the YJ will be up and running this afternoon. But we will be continuing concrete work on the job throughout the weekend, so my rematch with the Hammers will have to wait.

Jeff
89 Wrangler
I take my Jeep "On the Rocks",usually "With a Splash of Addrenalin"
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post #2 of (permalink) Old 10-13-2000, 01:05 PM
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Re: Ford 8.8 Repairs to date

One question Jeff, and it is a concern that is often voiced when welding the axle tubes to the diff on an AMC 20. There are concerns about the tubes snapping at the weld on the 20, so there are many folks that don't do the weld, just reinforce the ones thru the holes in the diff. Is that a concern on the 8.8?

Brad
ORC Land Use Section Editor
http://www.off-road.com/land
Vice-Pres. Rock Garden 4 Wheelers, Farmington, NM
post #3 of (permalink) Old 10-13-2000, 01:11 PM Thread Starter
 
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Re: Ford 8.8 Repairs to date

I hope not Brad.
According to the axle Gurus Im using, this fix is a standard upgrade on all high HP drag strip cars, thats why they have the special oven for heating the axles.
All I can do though, is put it all together and go and run as many trails as possible in an attempt to determine its strength.
Hey, I know that all that trail testing sounds like a lot of work, but im willing to do that for the BBS, its OK. Let my pain be your gain.
What a giver, Huh?

Jeff
89 Wrangler
I take my Jeep "On the Rocks",usually "With a Splash of Addrenalin"
H8monday is offline  
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