the gap is almost 2 times larger then what it should be .317 what type of washers should i use and how many? i think the max this should be is .187 from the mounting the pad of the converter and the mounting pad of the flexplate.

 

i went to autozone and got longer bolts for the converter. i got 20mm long and 30 mm just to be safe. the 20 mm look like theyll do as stock ones are 16mm. can anyone help me and tell me if putting 2 washers is safe. putting 2 washers will bring down to .175 and this is about 3/16 little smaller then 3/16 but its tolerable.

 

no washers should be needed. Bolts that are too long will f'up your converter.

What did you just install, give us some details. Is the trans new, flexplate, torque converter? The more info the better.

 

Most recommend against stacking washers. I suppose if they are high grade washers, not cheapies, I dont see why its a big issue.

 

Contact patch of two metal surfaces and clamp force come to mind, especially with something as important as the main coupling device between your engine and transmission. Sounds like a big issue to me

 

4l65e tranny. has about 300 miles on it. performa built, bellhousing is used. yank ss3600 converter(rebuilt) by yank.. cat flexplate (new). the new bolts i got 20 mm are only 4 mm longer then the 16mm that arp sells. which is about the length of the 2 washers that i need to use. im basically threading in what i would have originally threaded in if i didnt need washers. with these 2 washers that i put on. i can barely fit a 3/16 drill bit. so my clearances are right now with the 2 washers. i just want to see if anyone has any opinions on this.l i called performabuilt and frank say use what i need to get to 3/16, which i did! but to me its kind of iffy. the new bolts i got are class 10.9 so they are plenty strong? i just need someone to chime in.

 

It sounds like your combo washers will work. I prefer to use a single 1/8 washer to eliminate any problems. But make sure the washers are all the same thickness, SAE would be the best bet. I think you will be fine.

Chris

 

nice to hear from someone that knows what they are talking about. i will actually go to lowes or home depot tomorrow or friday and get what i need. hopefully they have it.