Diff Bolts very hard to get out.

[JacksonJay]

Hey everyone, got around to doing my trans bushing which went as smooth as could be, I have the JXB diff inserts for my 2020 and HSF upgraded bolts to go in, I figured it would be a walk in the park but I guess not. Took the weight off the diff with a jack, my 24” bar and I couldn’t break the bolt free, my impact can’t break the bolt free. I know it’s only 150 ft/lbs but is this common? I’ve been sparringly launching my car until I get the rear end stiffened up here. I want to see my 3.8 0-60 get to a 3.5.
Thanks!

 

[UNBROKEN]

What do you mean you took the weight off with a jack? It’s not load bearing….theres no weight on it.

 

[JacksonJay]

At first just tried to back the bolts out, nothing, won’t budge. Then I’ve seen some people just support the diff slightly to unload the bolt which I did think was strange myself, but some did do it so I figured I’d try. No change. I don’t feel like breaking the bolt today since I have a big road trip tomorrow, was just curious if this is somewhat common and if there is anything I can do to get the bolts out. Usually I’d use heat but obviously not here

 

[SugarMouth]

At first just tried to back the bolts out, nothing, won’t budge. Then I’ve seen some people just support the diff slightly to unload the bolt which I did think was strange myself, but some did do it so I figured I’d try. No change. I don’t feel like breaking the bolt today since I have a big road trip tomorrow, was just curious if this is somewhat common and if there is anything I can do to get the bolts out. Usually I’d use heat but obviously not here

Have you tried to tighten it before trying to loosen it? That occasionally helps. You can also try and tap the head of the bolt with a hammer to try and break the seal/corrosion/material preventing the bolt from moving. Spray penetrating oil under the bolt head overnight for S&Gs as well.

 

[JacksonJay]

Have you tried to tighten it before trying to loosen it? That occasionally helps. You can also try and tap the head of the bolt with a hammer to try and break the seal/corrosion/material preventing the bolt from moving. Spray penetrating oil under the bolt head overnight for S&Gs as well.

I sure did try that yes, and I tried to get some penetrating oil in there, but have a road trip tomorrow, so I won’t be able to get this done for about 4000 miles unfortunately, I won’t be beating on it for all that time though!

 

[SugarMouth]

I sure did try that yes, and I tried to get some penetrating oil in there, but have a road trip tomorrow, so I won’t be able to get this done for about 4000 miles unfortunately, I won’t be beating on it for all that time though!

Right there with you, been waiting months for a diff brace to get manufactured.

 

[BuckStrickland]

Right there with you, been waiting months for a diff brace to get manufactured.

What do you mean? Theres plenty of diff brace options out there.

 

[BuckStrickland]

I sure did try that yes, and I tried to get some penetrating oil in there, but have a road trip tomorrow, so I won’t be able to get this done for about 4000 miles unfortunately, I won’t be beating on it for all that time though!

I wonder if you overtightened when you put the inserts in? Ive also heard of people having issues if the car isnt on a level surface, either of those?

 

[SugarMouth]

What do you mean? Theres plenty of diff brace options out there.

The brace I want has been delayed in production.

 

[BuckStrickland]

The brace I want has been delayed in production.

Ahh, you meant a specific one, not in general. Which one you waiting on?

 

[SugarMouth]

Ahh, you meant a specific one, not in general. Which one you waiting on?

https://whooshmotorsports.com/produ...erential-brace-2020-explorer-st-free-shipping

 

[BuckStrickland]

https://whooshmotorsports.com/produ...erential-brace-2020-explorer-st-free-shipping

Ahh, yeah. ID Speed is nice! Livernois and Steeda are nice as well.

 

[UNBROKEN]

https://whooshmotorsports.com/produ...erential-brace-2020-explorer-st-free-shipping

Check with ID Speed. CPe engineered and initially sold them as an exclusive through ID Speed. Whoosh is listing them as CPe so maybe Eric at ID has some in stock.

 

[JacksonJay]

I wonder if you overtightened when you put the inserts in? Ive also heard of people having issues if the car isnt on a level surface, either of those?

I haven’t touched the rear end before, as far as I know these bolts have never been out, the car was close-ish to level, put the parking brake on and let the car rest in neutral before putting it in park as well just to make sure there was no preload on those bolts with all factory bushings and no diff brace.

 

[SlowSTExploder]

Try to break the bolt loose before you use the jack to support the weight, your bolt could most likely be bent already, and with the use of the jack, your binding up the bolt, preventing it from moving..