Excessive play in the driveshaft?

[imotion s14]

Finally got around to installing my DS. Noticed I have about 1" play in the driveshaft. I'm sure I measured it correctly, I measured roughly 45 3/4" from the output shaft to the flange. It seems to be pretty excessive.

setup: RB25, S14, R33 VLSD, Syko mounts.

[SullivanRacing06]

did you get a one piece d/s or is it a sky d/s? mabey bad carrier bearing? you said it moved about a inch? what around in the tunnel of the car or in n out of the transmission to the diff? aftermarket or nissan?

[imotion s14]

bah forgot to mention that.. custom 1 piece and I mean back and forth play.. or as you said in and out of the output shaft. 1" seems excessive but I never really measured the play in the stock DS when I had the KA.

[leesredgt]

How can it slide back and forth if you have it bolted to one end?When i put my McKinney drive shaft in i had to put it in then pull it a lil. back for it to work.I wouldnt worry about it to much.

[imotion s14]

How can it slide back and forth if you have it bolted to one end?When i put my McKinney drive shaft in i had to put it in then pull it a lil. back for it to work.I wouldnt worry about it to much.

I never bolted it to diff input flange, just slid the yoke all the way into the transmission output shaft. There is a gap with it slid in all the way between the diff and DS. I know there should be some play but 1" seems pretty excessive to me.

[leesredgt]

I forgot how much i had to pull mine back.how much of the shaft is actually in the transmission?

[Darius]

The rule of thumb is to measure from the output shaft in the transmission to the input flange on the diff and subtract 1/4". One inch seems like a lot of play to me, but I don't know what the negative effects will be, if any. I don't think you'll be putting down enough power to actually break the shaft, but it may introduce some vibration into the drive train.

[SullivanRacing06]

if he still had a stock 2 piece then yes it would move around in the tunnel b/c of the stock carrier bearing

[imotion s14]

I forgot how much i had to pull mine back.how much of the shaft is actually in the transmission?

roughly 3-1/4" inches, the yoke is 4-1/4"

The rule of thumb is to measure from the output shaft in the transmission to the input flange on the diff and subtract 1/4". One inch seems like a lot of play to me, but I don't know what the negative effects will be, if any. I don't think you'll be putting down enough power to actually break the shaft, but it may introduce some vibration into the drive train.

That's what I'm thinking, just looking for a consensus.