Bellhousings
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Many automatic transmission bellhousings are an integral part of the transmission case, and as such, are not removable. However, in some cases the bellhousing is replaced by machining the case to remove the old bellhousing and a specially made bellhousing is attached to the case by the front pump bolts. | Many automatic transmission bellhousings are an integral part of the transmission case, and as such, are not removable. However, in some cases the bellhousing is replaced by machining the case to remove the old bellhousing and a specially made bellhousing is attached to the case by the front pump bolts. | ||
| − | There are OEM designs used by Ford (as far back as the early | + | There are OEM designs used by Ford (as far back as the early ‘50s) and GM (some 4L60E) that use removable bellhousings. GM also used “uni-case” bellhousing bolt pattern on some of their transmissions, allowing them to be used across a wider range of GM engines.<br style="clear:both"/> |
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| + | ===Ford bellhousing bolt patterns=== | ||
| + | Below are three common bellhousing bolt patterns used by Ford. | ||
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| + | [[File:Ford-transID04b.jpg]] | ||
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| + | {{Note1}} | ||
| + | *The small block Ford pattern was also used on the 351 Cleveland as well as some some big block-sized V8, V6 and the 300 cid I6 engines. | ||
| + | *The 335 "big block" pattern was shared with some 385 series engines (429/460). A very few 400 blocks were cast with the small block bellhousing pattern as well as the normal 335 series pattern- which was left undrilled. | ||
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| + | *Wikipedia page, [http://en.wikipedia.org/wiki/List_of_Ford_bellhousing_patterns List of Ford bellhousing patterns] | ||
===Aftermarket Powerglide bellhousings=== | ===Aftermarket Powerglide bellhousings=== | ||
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