Frame Cracks

jc_chandler

Member
CJ-8.com Member
City
Denver
State
CO
#1
After pulling off the front end I noticed three small cracks in the passenger side of the frame. I'm thinking I can drill out holes on both ends of each, grind them to a v, weld them up, and then grind flat, but I'm curious about y'all's thoughts on how to fix and also what might have caused them. This was a farm Scrambler so maybe it was just stress?

PXL_20201031_005700760.jpg PXL_20201031_005712398.jpg PXL_20201031_005720708.jpg
 

jc_chandler

Member
CJ-8.com Member
City
Denver
State
CO
#5
The decision I'm struggling with is if I should spend the time and money to clean out the years of dirt, blast the frame, fix the cracks, paint inside and out etc etc etc or just pony up the dough for a TDK frame and sell this one to help offset the cost.
 

jpnmaine

Active member
CJ-8.com Member
City
East Wilton
State
ME
#6
It is all repairable. The issue I see are the cracks not noticable. The top section where the weld is questionable actually looks like a crack propagated along the weld in the heat affected zone. Dye penetration is a process used to find cracks and is one means to identify and locate the true ends so that remediation is accomplished. It is a simple process with very good results. Sure there are YouTube videos on this.
 

ag4ever

Average Nut
LIFETIME
CJ-8.com Member
City
Richmond
State
TX
#8
If the frame is solid, but just has those few cracks, I would clean it up and weld up the cracks.

If you are doing an engine swap to double the stock HP levels, I would get the TDK frame.
 

jc_chandler

Member
CJ-8.com Member
City
Denver
State
CO
#9
I am planning to swap the engine with something that will have much much more HP and torque. I'll give TDK a call. What's an original frame like this worth?
 

ag4ever

Average Nut
LIFETIME
CJ-8.com Member
City
Richmond
State
TX
#10
I think I paid just under $1000 for a perfect original frame that looked like it was straight from the factory about a year ago. One with work that needs to be done would be worth less. It might be worth more to people in the rust belt.

I am in the process of strengthening the factory frame for V-8 power, and wish I had just gone the TDK route.
 

wjtstudios

1985 CJ 8
LIFETIME
CJ-8.com Member
SOA Member
City
Rochester
State
Mi
#11
I am planning to swap the engine with something that will have much much more HP and torque. I'll give TDK a call. What's an original frame like this worth?
I went down the same rabbit hole with my build. Between the cost and time of cleaning it up and needing a stronger frame fit the 360 and trail use, I went with the TDK frame. Awesome quality, only issue was the rear body mounts were 1/2 off. But other than that it was perfect. I had it galvanized and set up for a front shackle reversal and YJ springs. You can also have it set up for a TJ Control Arms. Lots of options and more rabbit holes to dive down into.
 

jc_chandler

Member
CJ-8.com Member
City
Denver
State
CO
#12
Thanks everyone. I think I'm sold on the TDK route. I'll have to do some research on the shackle reversal. Any immediate drawbacks to that over the stock setup?
 
City
Duxbury
State
MA
#14
ok, I’m joining the rabbit hole. Looking at a frame swap. How much time should I expect to do the work?

also, I already h ave a 4.5” rubicon express lift. So I assume I don’t need the shackle reversal. Thoughts?
 

AK-RWC

Legacy Registered User
SOA Member
City
south central
State
AK
#15
Time depends on how far down the rabbit hole you go. My six-month project went and found the bottom of the hole, and turned into a full build with a new tub, and took four years.

I'm not a fan of shackle reversals, but others have alternative opinions.
 
Top