2g PTT twin disk flywheel bolts

[primo513]

Alright guys, so I bought a PTT twin disk and the stock flywheel bolts are too long. I've read up and heard people are using the 7 bolt flexplate bolts because they are shorter, but I didn't know what anybody else thought or has had success with.

I can't seem to find anything about the bolt length for the PTT flywheel. Sorry if this had been answered but I only saw threads for the 1g setup and i know the 6 bolt threads are longer because the crank has deeper holes. Thanks for the help in advance guys!

Alright guys, I kept researching and found the answer from the ECMLink forums. The PTT twin disk for 7 bolt uses the 6 bolt flex plate bolts so that you don't have to drill out the crank or use a spacer. The part number for anybody who might need this in the future is (MD952233). The bolts are only $2.05/each from extremepsi.com. Hope this helps anybody else out that needs it.

 

[eviltsi]

I used evo flywheel bolts on mine when I had it back in the day.

 

[twicks69]

As a simple reference, here are some Mitsubishi OEM bolt lengths and part numbers:

11.7mm long Flywheel Bolts MD752272
15.2mm long Flywheel Bolts MD334117
15.5mm long Flywheel Bolts MD368638
17.0mm long Flywheel Bolts MD952233
19.5mm long Flywheel Bolts 1120A062
21.2mm long Flywheel Bolts MD302074
22.5mm long Flywheel Bolts 2795A956
29.0mm viscous LSD front diff Bolts MD952231


With the PTT stuff, I normally use 17.0mm or 19.5mm flywheel bolts; it depends on the application and a measurement confirmation of the flywheel flange thickness added to the crank flange bolt hole THREAD DEPTH (not the total hole depth as the threads do not go all the way to the bottom of the hole).