help

Ok i have done the search thing and did not find anything I'm looking for one. what they mite have come off of. Im doing a conversion. I have a 1981 cj 5 and i bought a 1996 4.3 vortec out of a blazer. (auto) and i have read that i need to get a 153 tooth flywheel to put in it in to my stock tanny (and i know it wont hold up very long but no money) so can any one help maybe a part # or some thing that i could use.





:massey:

Call up Jeggs 1 800 345 4545

The tooth count is really on dependent on the starter & vice versa. Not sure why you'd need one for your tranny...?

Bryan

Because there are 2 different sized bellhousings for chevy small blocks/4.3's :rolleyes:

It's called a flexplate, and they are cheap new, but you normally find the smaller flexplate on cars - try the caprice or pontiac pariseanne

Originally posted by oldjeep
Because there are 2 different sized bellhousings for chevy small blocks/4.3's :rolleyes:


OK, that makes sense, but wouldn't the other choice be 148 teeth, which would be nominally smaller than what he has, and guaranteed to fit in the same housing as a 153 tooth? Not like we're talking clutch surface area or anything...

Bryan

Originally posted by Oxjockey


OK, that makes sense, but wouldn't the other choice be 148 teeth, which would be nominally smaller than what he has, and guaranteed to fit in the same housing as a 153 tooth? Not like we're talking clutch surface area or anything...

Bryan

No, the other choice is 168 tooth, and you can't stick a 153 tooth flywheel where a 168 belongs.

Originally posted by oldjeep


No, the other choice is 168 tooth, and you can't stick a 153 tooth flywheel where a 168 belongs.

Out of personal curiosity, what were the applications for a 168 tooth flywheel in a small block application? Even the larger truck clutch fits on the 153, IIRC. Why have two different size bellhousings, they both bolt to the same physical locations on the block, so the larger ones would have a longer rake?

Bryan

Originally posted by Oxjockey


Out of personal curiosity, what were the applications for a 168 tooth flywheel in a small block application? Even the larger truck clutch fits on the 153, IIRC. Why have two different size bellhousings, they both bolt to the same physical locations on the block, so the larger ones would have a longer rake?

Bryan

Here's a basic SBC primer:
http://www.novak-adapt.com/knowledge/chevy_small_block_v8.htm


The 168-tooth car flywheels are drilled for 10-1/2" clutch. The 168-tooth truck and high performance car flywheels are drilled for 11" clutch.

The 153-tooth flywheels may be drilled for 8, 9, 9-1/2 or 10-1/2" clutches, depending on what engine they were originally used on.

Sadly, I have a SBC, but I don't remember what I have. :(

Thanks... :D

Bryan

ok i got al this from the search button what i need to know is what year app. did the 153 toot flywheel come off of???




it is a 1981 cj 5 with the iron duke (chev.) motor in it and the bell housing boltes right up to it the problem is that the 168 tooth flywheel does not work its to big (i can go to local junk yard and find liek 10 all day long) but i need a 153 tooth so can any one help thanks




:massey:

Originally posted by moto261
ok i got al this from the search button what i need to know is what year app. did the 153 toot flywheel come off of???




it is a 1981 cj 5 with the iron duke (chev.) motor in it and the bell housing boltes right up to it the problem is that the 168 tooth flywheel does not work its to big (i can go to local junk yard and find liek 10 all day long) but i need a 153 tooth so can any one help thanks




:massey:

Almost all 4.3's with a manual tranny use the 153 tooth. Other applications are cars with 350's.

thanks oldjeep guy

ill have to do mor looking at the recking yards




:massey: