10 replies to this topic

[0100]

Could someone tell me what part number the two rear humps on the drivers side floor are?



Looking at the parts catalog does not show the two rear humps just one hump(closest to the door).

Look at Page 77

http://www.mazdamoto...0MX5/0073_2.PDF

Totally confused on what the part number(s) are for these....

Also what size bolt is used to mount the stock seat rails to these humps?

Thanks.

[Cy Peake]

Mine are gone in order to mount the seat to plates welded to the floor where those humps used to reside. PM me your email if you want a photo.

[Bench Racer]

Could someone tell me what part number the two rear humps on the drivers side floor are?

Totally confused on what the part number(s) are for these....

Also what size bolt is used to mount the stock seat rails to these humps?

Thanks.

Humps:

P-74 Right hump NA01-53-670A

P-77 Left hump NA01-54-670A

Bolts:

P-96 Bolts B455-57-05XB

If you order from Mazdaspeed, have them double check the part numbers.

If you only require the bolts buy yourself a metric thread gauge for a couple bucks at an auto parts store. Trust me you'll need it. With this gauge you can match internal & external thread pitch. Use a caliper to measure close to the internal thread minior diameter. Go to your local hardware store & many metric bolts are available.

[0100]

Mine are gone in order to mount the seat to plates welded to the floor where those humps used to reside. PM me your email if you want a photo.

Yeah the previous owner removed them to get more room but I am only 5' 8" so was worried being mounted to the floor would be too low but maybe not. Anyone this height and mounted to the floor? I don't have the car yet won't be until a day or two before the NHMS race. LOL should be fun getting seat, belts, ballast and bunch of other little things done in one day.

[0100]

Humps:

P-74 Right hump NA01-53-670A

P-77 Left hump NA01-54-670A

Bolts:

P-96 Bolts B455-57-05XB

If you order from Mazdaspeed, have them double check the part numbers.

If you only require the bolts buy yourself a metric thread gauge for a couple bucks at an auto parts store. Trust me you'll need it. With this gauge you can match internal & external thread pitch. Use a caliper to measure close to the internal thread minior diameter. Go to your local hardware store & many metric bolts are available.

Awesome thanks! The thing that confuses me is those part number for the humps is that the drivers side ones? If so what is the passenger side part numbers?

Yeah got the bolt part number but was hoping someone knew the size of the bolt, so I could just get some 8.8 bolts instead of going through mazda. No car to measure, so hoping someone knows.

Thanks guys.

[wheel]

I just ran a tap into the holes on the passenger side of my 92. They are 10mm x 1.25

wheel

[0100]

Awesome thanks so much!

Do you guys think a side mount seat mounted to the humps would sit too high for a 5'8" driver?

Anyone around 5'8" could you tell me how your seat is mounted?

off to do more searching on seat mounting!!!

Thanks for all the help guys!

[AJ Roderick]

Awesome thanks so much!

Do you guys think a side mount seat mounted to the humps would sit too high for a 5'8" driver?

Anyone around 5'8" could you tell me how your seat is mounted?

off to do more searching on seat mounting!!!

Thanks for all the help guys!

You can give me a call tonight 440-954-1485. I am 5'6" and the other kid that races with me is almost 6'0" Ill explain how we did it

[0100]

You can give me a call tonight 440-954-1485. I am 5'6" and the other kid that races with me is almost 6'0" Ill explain how we did it

Will do, thanks!!

[JayF]

I'm 5'7" and am running no rear humps with a sparco circuit pro. Pm me as you might not be too far from me and can check it out if you'd like. I am in RI.

[0100]

^PM sent.

Thanks AJ, big help!