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building a bellhousing


Bill Hincher
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  • 6 months later...

drilling the bellhousing is an exact phase, all the previous work is no good if it dont line up. this is a center plate keyed to the rear of the bellhousing to index the raw casting in the right direction

http://www.billsautofab.com/images/62rethinkingr154.jpg

i like to use the flywheel I am using to center a raw casting, yeah, theres probably a lot of ways to do this , but you know? thats the flywheel thats gotta spin in the housing for a lot of time to come .;o)

http://www.billsautofab.com/images/65rethinkingr154.jpg

now that I have the raw casting chucked into the bridgeport in the proper index, i can drill it to the engine this is drilled to an AWD flywheel, I can drill my bellhousings to either an AWD or a FWD unit

http://www.billsautofab.com/images/66rethinkingr154.jpg

I add my seperater plates at this time because each one is a little different, I cant make them wholesale

http://www.billsautofab.com/images/67rethinkingr154.jpg

a lot of guys want to know how i center the transmission, the answer is kinda easy, I built a plate with the engine bolt pattern on it, then I index the plate to center

http://www.billsautofab.com/images/68rethinkingr154.jpg

I use inserts to imitate the engine bolt pattern , then mount the bellhousing on my imitation engine block

http://www.billsautofab.com/images/69rethinkingr154.jpg

I drill in my transmission guide pins next just to test the center, dont forget the trans facing must be indexed just as well as the engine plate, so everything must be 'in phase' that was per done when I used the backing plate to 'key' the raw casting before I drilled the facing

http://www.billsautofab.com/images/70rethinkingr154.jpg

I like to test center at this piont

http://www.billsautofab.com/images/71rethinkingr154.jpg

then I like to clean up all the mounting bolt surfaces with a home made cutter

http://www.billsautofab.com/images/72rethinkingr154.jpg

http://www.billsautofab.com/images/75rethinkingr154.jpg

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