T55 bolt removal for running board install

[Garga]

I received the Hansshow running boards and was looking up info To install them.

I read somewhere that T55 bolts which need to be removed are NOT righty tighty lefty loosy ( right hand threaded) bolts . It sounds wrong. Can anyone confirm

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[Dark-Fx]

TP55, standard right hand thread.

 

[Garga]

Thanks , did not want to use impact wrench in wrong direction

 

[godfodder0901]

Thanks , did not want to use impact wrench in wrong direction

Make note that they are NOT T55... They are TP55...

 

[SANZC02]

Thanks , did not want to use impact wrench in wrong direction

Make sure it is a TP55 , a regular T55 will strip it.

 

[SPITmadFIRE]

For others:

T55 = Torx 55
TP55 = Torx Plus 55

 

[Garga]

Thanks for head up. It would have been a mess otherwise. I ordered IP55 torx plus 55 torx bit https://www.amazon.com/TMAX-Impact-...2lkZ2V0TmFtZT1zcF9waG9uZV9zZWFyY2hfYXRm&psc=1

 

[brancky3]

Thanks , did not want to use impact wrench in wrong direction

Even with an impact mine were tough to get off! Those suckers are insanely tight

 

[Jccoryell]

Even with an impact mine were tough to get off! Those suckers are insanely tight

Rivian uses Locktite on those bolts making them horrible to remove

 

[scmrivian]

This long breaker bar https://www.amazon.com/gp/product/B07KWJCVVN/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1 made it really easy to break them loose.

 

[Garga]

This long breaker bar https://www.amazon.com/gp/product/B07KWJCVVN/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1 made it really easy to break them loose.

I got the bar and pipe to extend it. I hope the impact wrench does the job. Just waiting for tp55 specific 1/2” bit to arrive. May be it needs penetrating oil too

 

[connoisseurr]

I got the bar and pipe to extend it. I hope the impact wrench does the job. Just waiting for tp55 specific 1/2” bit to arrive. May be it needs penetrating oil too

You don’t need penetrating oil.

As long as you have the correct bit, ratchet and breaker bar, you’re all set. I’d also recommend you buy/rent/borrow a torque wrench for reinstallation of the bolts.

Also be ready for some emergency modification of your mounting hardware. One bolt on my truck wasn’t aligned like the others, making it impossible for the mounting bracket to fit. It was not the bracket, as I tested all of them and the issue persisted. I had to further elongate a hole on one mounting bracket for it to securely mount like the others.

 

[Garga]

You don’t need penetrating oil.

As long as you have the correct bit, ratchet and breaker bar, you’re all set. I’d also recommend you buy/rent/borrow a torque wrench for reinstallation of the bolts.

Also be ready for some emergency modification of your mounting hardware. One bolt on my truck wasn’t aligned like the others, making it impossible for the mounting bracket to fit. It was not the bracket, as I tested all of them and the issue persisted. I had to further elongate a hole on one mounting bracket for it to securely mount like the others.

Good point, Do you know the torque specs for tp55, 15mm and 17 mm bolts. I think I read for tp55 it is 85ft lbs ,

I have an old beam style craftsman 1/2” torque wrench, they are reasonably accurate at higher values. I can also check while unbolting at what ft lbs torque breaks.

 

[connoisseurr]

Rivian TP55 bolts are torqued to 80 ft-lbs.

For torque specs related to your installation hardware, refer to the manufacturer/vendor installation manual.

 

[Summi99]

TP55, standard right hand thread.

Meaning right to loose and left to tight ?

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