Can anyone tell me what size bolts connect the bell housing of the I-6 to the transmission. In my case the
tranny is an NP435 (4 speed manual, granny low). Several of the bolts appear missing and I don't want to remove the one that I can find to measure it.
1985 F-150 Inline 6
I have the same set up, I trying to remember it has been a while since I took em out. I think they were a 1/2 inch diameter shank about 2 or 2.5 inches long. Standard thread, hope this helps; oh don't be afraid to remove the bolts. The bellhousing has guidepins and the weight of the motor is pretty balanced so it isn't going anywhere. If it bothers you, you could support the front of the tranny with a floor jack when you take the bolts out.
1977 Ford F250 XLT Ranger 4wd/ 351m/ NP435/ 205
1979 Ford Bronco XLT Ranger/ 460/ C6/ 205
1984 Ford F250 XL 4wd/ 6.9 IDI/ C6/ BW1345
1984 Ford F150 4wd/ 300/ NP435/ 208
1996 Ford F150 XLT 4wd/ 300/ ZF5/ BW1356
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