lightened flywheel

[rx191]

1988 and up use the same flywheel till you get to the gen 3 motors i looked it up at work todya and gm even shows the same part # for the flywheel from 88 on front and rear wheel drive.

[Doubt_Incarnate]

are you sure it isnt just the ring gear that different then?

[rx191]

the ring gear should not be different, with the flywheels having the same part number

[Doubt_Incarnate]

i think they are individually replacable, might want to check on that to be sure.

[rx191]

the ring gears are the same, they use the same tooth count for 88+ they would have to be a different size to use a different ring gear anyway

[RacerX11]

1988 and up use the same flywheel till you get to the gen 3 motors i looked it up at work todya and gm even shows the same part # for the flywheel from 88 on front and rear wheel drive.

Not according to GMPartsDirect online catalog. All FWD flywheels (pre- and post-88 ) use the 142-tooth, part# 359115 ring gear.

All '88+ Camaros used flywheel part# 14100559, ring gear part# 14033090. All '88+ S-10's use flywheel part# 14100556, ring gear part# 14033090. This is the exact same ring gear used for '85 2.8 S-10's, as well as the 2.0 and 2.5 S-10's. Advance Auto also lists the 148 tooth flywheels for '88+ RWD applications. Sounds to me like all RWD used the larger flywheel, regardless of year.

Marty

[rx191]

i don't know about the s10's i ahven't researched those but all the f body's with 3.1-3.4 in them use the same flywheel as the fwd cars, even the ring gear is the same

[RacerX11]

i don't know about the s10's i ahven't researched those but all the f body's with 3.1-3.4 in them use the same flywheel as the fwd cars, even the ring gear is the same

Not according to the numbers I posted.

Marty

[SHOoff]

If I had to guess, I'd say the RWD is probably using a thicker flywheel. So you might have problems with clutch engagement on a FWD flywheel. (Might, not sure) I know for a FWD 3800 on a 5spd, you have to take a RWD flywheel and machine it down to the FWD thickness.

[rx191]

everywhere i have looked the part number is the same for thew flywheel for a RWD f body, camaro or firbird the fWD and RWD engines in these cars are the same fi the numbers match. i don't know about the trucks, but they mite have a heavyer flywheel for more touqe that could be why they are larger. i will research it a little more but numbers don't lie

[bszopi]

Everywhere you look except for direct from GM, which is the numbers Marty posted. If anything is correct, I'd say it is GM.

[Guest]

Everywhere you look except for direct from GM, which is the numbers Marty posted. If anything is correct, I'd say it is GM.

QFT!

There is indeed a difrence in diameter between FWD and RWD, I had like 4 of each at one time all stacked on top of one another, that's how I discovered the differences.

I didn't think to check for thickness differences if any though, the diamerter was enough proof for me.

Oh just thought I'd mention the 3800 flywheel needs to be machined thinner, not to "match FWD thickness" but because the crank on the 3800 sticks farther out the back of the engine than the 660 or OHV I4s. Also the bolt pattern is different, so that needs to be redrilled.

[RebelGT]

from Greg's post in the Jeep forum.

"you'd need the thick (heavy) flywheel from a Camaro/Firebird. It places the clutch disk back far enough to completely engage the splines on the short W/G series input shaft. That's got to be at least 1 3/4" from the back of the block to the front face of the flywheel. The S10 flywheel is shorter (more narrow) and won't work."


The S10 flywheel I believe he's refering to is the FWD style flywheel, so that might answer your question.

[Guest]

from Greg's post in the Jeep forum.

"you'd need the thick (heavy) flywheel from a Camaro/Firebird. It places the clutch disk back far enough to completely engage the splines on the short W/G series input shaft. That's got to be at least 1 3/4" from the back of the block to the front face of the flywheel. The S10 flywheel is shorter (more narrow) and won't work."


The S10 flywheel I believe he's refering to is the FWD style flywheel, so that might answer your question.

Nope, since my RWD flywheels were from S-10s.

I have heard of a difference in F-body Flywheels, buit that was ONLY in refence to the 3.4, mentioned in the 2.8-3.4 swap, for both S-10s and earlier F-bodies.

[RebelGT]

from Greg's post in the Jeep forum.

"you'd need the thick (heavy) flywheel from a Camaro/Firebird. It places the clutch disk back far enough to completely engage the splines on the short W/G series input shaft. That's got to be at least 1 3/4" from the back of the block to the front face of the flywheel. The S10 flywheel is shorter (more narrow) and won't work."


The S10 flywheel I believe he's refering to is the FWD style flywheel, so that might answer your question.

Nope, since my RWD flywheels were from S-10s.

I have heard of a difference in F-body Flywheels, buit that was ONLY in refence to the 3.4, mentioned in the 2.8-3.4 swap, for both S-10s and earlier F-bodies.

are you saying Greg's info is wrong? I'm just trying to add more info to help figure this out, no need to be all dickish about it.