Hmmm... car built oct of 91 but has 25 spline. - 3000GT/Stealth International Message Center

75blackray · 12-03-2007, 02:25 PM

I have my car in the shop getting a new short block put in (spun bearing). So i went to check on it today and they had the old motor and trans out so i decided to count my spline and magically i have 25. I thought they didnt change over to 25splines until november of 91? Either way good new to me. I checked the splines for wear and they looked good. Anywhere else i should be checking for problems?

Black_Sunshine · 12-03-2007, 04:36 PM

who did you buy the car from? 25 splines didn't start until late 92.

spfan · 12-03-2007, 05:14 PM

Quote:

Originally Posted by Black_Sunshine

who did you buy the car from? 25 splines didn't start until late 92.

...model year. he's talking production date. hint, some '92's were built in '91.

sublime_whatigo · 12-03-2007, 05:44 PM

Could of easily been switched over. Seems like most didnt get 25 spline until march and even then some built later only got 18 splines, could be just a fluke too though.

mjannusch · 12-03-2007, 05:49 PM

Hint: Recall, warranty work, or previous owner paid for a new trans/tcase, etc.

Not a real surprise that it has a 25 spline. Good deal though.

Black_Sunshine · 12-03-2007, 05:54 PM

Quote:

Originally Posted by spfan

...model year. he's talking production date. hint, some '92's were built in '91.

i know he was talking about production dates. however, i believe (correct me if i'm wrong), that the 25 splines didn't go into the 3s until late 92+ production models. i'm also guessing it was the previous owner that upgraded it to a 25 spline. i don't think recall work includes the amount of work it would take to convert from 18 to 25.

Black_Sunshine · 12-03-2007, 05:59 PM

my mistake, it was late 91

according to the 3s wiki

mjannusch · 12-03-2007, 06:02 PM

Quote:

Originally Posted by Black_Sunshine

i don't think recall work includes the amount of work it would take to convert from 18 to 25.

If the output shaft splines rusted while the car was still under warranty, the general dealer fix was to replace both the tranny and transfercase to keep them as a matched set and eliminate the possibility of getting the wrong trans back from Mitsubishi.

Happened a lot in the "early days".

Black_Sunshine · 12-03-2007, 06:04 PM

the production sticker on my car says it was produced in Jan 92. does that mean i have the 25 spline? that would be cool if it did.

Black_Sunshine · 12-03-2007, 06:04 PM

Quote:

Originally Posted by mjannusch

If the output shaft splines rusted while the car was still under warranty, the general dealer fix was to replace both the tranny and transfercase to keep them as a matched set and eliminate the possibility of getting the wrong trans back from Mitsubishi.

Happened a lot in the "early days".

ah, didn't think about that. good point!

12-03-2007, 02:25 PM	#1 (permalink)
75blackray Forum Member Join Date: Nov 2005 Drives: 93 es, 75 vette Trader Rating: (4)	Hmmm... car built oct of 91 but has 25 spline. I have my car in the shop getting a new short block put in (spun bearing). So i went to check on it today and they had the old motor and trans out so i decided to count my spline and magically i have 25. I thought they didnt change over to 25splines until november of 91? Either way good new to me. I checked the splines for wear and they looked good. Anywhere else i should be checking for problems? __________________ 1992 RT/TT- new factory shortblock, Dr-500s, hks downpipe, borla w/ no cat, 3sx poly mounts, southbend rally clutch, dsm bov, turbo xs mbc set @ ~7, scanmaster 3(love it). DD Waiting to be installed -550cc inj, arc-2 kit, s-techs. 1975 vette- nicely built 355 (on the backburner till I graduate)backup DD lol @ 12 mpg

12-03-2007, 04:36 PM	#2 (permalink)
Black_Sunshine Boost Happy Join Date: Jan 2002 Location: Bay Area CALI Drives: a japanese dodge Trader Rating: (60)	Re: Hmmm... car built oct of 91 but has 25 spline. who did you buy the car from? 25 splines didn't start until late 92. __________________

12-03-2007, 05:44 PM	#4 (permalink)
sublime_whatigo Hates Gravel Join Date: Sep 2002 Location: G.R. Michigan Drives: reliable car (nissan Trader Rating: (21)	Re: Hmmm... car built oct of 91 but has 25 spline. Could of easily been switched over. Seems like most didnt get 25 spline until march and even then some built later only got 18 splines, could be just a fluke too though. __________________ 92 3000GT VR4 Black Wheel Mafia - Member 002 Matt

12-03-2007, 05:49 PM	#5 (permalink)
mjannusch Pro xfercase destroyer Join Date: Feb 2001 Location: Hudson, WI Drives: 2005 Toyota Prius Trader Rating: (15)	Re: Hmmm... car built oct of 91 but has 25 spline. Hint: Recall, warranty work, or previous owner paid for a new trans/tcase, etc. Not a real surprise that it has a 25 spline. Good deal though. __________________ -Matt '95 3000GT Spyder VR4 (11.838@117.56) '91 3000GT VR4 (Project for 2008)

12-03-2007, 05:59 PM	#7 (permalink)
Black_Sunshine Boost Happy Join Date: Jan 2002 Location: Bay Area CALI Drives: a japanese dodge Trader Rating: (60)	Re: Hmmm... car built oct of 91 but has 25 spline. my mistake, it was late 91 according to the 3s wiki

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12-03-2007, 06:04 PM	#9 (permalink)
Black_Sunshine Boost Happy Join Date: Jan 2002 Location: Bay Area CALI Drives: a japanese dodge Trader Rating: (60)	Re: Hmmm... car built oct of 91 but has 25 spline. the production sticker on my car says it was produced in Jan 92. does that mean i have the 25 spline? that would be cool if it did.