Does anyone know the length, pitch, size of the bolts that bolt up the 87 5sp tranny to an 87 T2 block? And the qty of bolts too.
Thanks
Owen

 

The Factory Service Manual in the FAQ has the number of bolts. There is a thread pitch topic in the Archives which contains the sizes.

 

I've spent as much money on bolts for my seven during the rebuild as I did new oil for it... :/

 

mazdatrix has for around 4 dollars a piece

 

https://www.rx7club.com/2nd-gen-archive-72/master-list-thread-sizes-2nd-gen-nuts-bolts-367392/

Enjoy the work I put into that.

Engine / Tranny Mounts:
(1) 14 mm head - Length = 145mm (5 5/8 in) (with head of bolt)135 mm (5 1/4 in) (from bottom of head of bolt to end of bolt). Nut on opposite end. FINE THREAD
(1) 14 mm head - Length = 100 mm (3 15/16 in) (with head of bolt) 90 mm (3 1/2 in) (from bottom of head of bolt to end of bolt). FINE THREAD
(2) 14 mm head - Length = 45 mm (1 3/4 in) (with head of bolt) 35 mm (1 3/8 in) (from bottom of head of bolt to end of bolt). FINE THREAD
(1) 14 mm head - Length = 40 mm (1 1/2 in) (with head of bolt) 30 mm (1 3/16 in) (from bottom of head of bolt to end of bolt). COURSE THREAD

 

Can you quantify "course"... "coarse" thread?

 

Nevermind...

 

I believe that the course thread bolts are a 1.50 thread pitch (or 1.75) and the fine threads are 1.25 or 1.0. Seriously, a thread gauge is about $5 at the local hardware store and saves a lot of guesswork.

 

Thanks everyone!
If that link above had contained the words "bell" or "housing" I woulda found it...:-)

 

It contains those 3...

 

I only searched for bellhousing bolt length