ok i got some questions about my non lsd y1 transmission... the other weekend i was racing my car at the track and my trans blew up right off the line, i didnt jack the car up or anything yet cause im so busy with work and my baby so idk from what i can see the one shift linkages that bolts to the trans was off and theres a big whole in the case. any one have ideas of what happend?? im asking this is because if its a commen probblem for b series transmissions... so any info on weeknesses of b series transmissions would be good

 

If there is a big hole at the rear of the trans then you probably blew a diff pin. The early b tranies are known for that.

 

88-91 CRX trannys will doe the same.

JDM B16 trannys as well as 90-91 LS trannys also have the weak diff pin.

 

what exactly is the diff pin i have no idea about transmissions??

so you think if i had a lsd in the trans would this still happen??

also what would cause this to break??

thanks this would really help me out

 

The diff pin, also called a cross pin holds the pinion gears in place. It is quite common



Notice the $900 LSD sitting on top! (YIKES!)

The pins I mentioned above were not hardened, the pinion gears would CHEW thru the pin until it failed. When it fails it like dropping a grenade into the tranny.

Bad pin chewed thru



Good pin hardened from the factory



Then the replacement "GOLDEN" diff pin and how it holds the gears in place.



ALL POWER is transmitted thru that pin.

 

Good info Bone, where do the hardened pins come from? Replacement from Honda?

 

they started using them in 1992 on everything.

I've never tried to buy a replacement because normally the case is TRASHED when the diff explodes.

 

so what would you think i should do get a replacement pin or the gold pin??

and were would i get this at??

 

Can't buy the pin separate...from Honda at least.

I'm sure you could match something up that would work!

I just built a MR2 turbo transmission and decided to open up the stock open diff...WOW those trannies are built tough. There are 4 spider gear pins, instead of one, and they are actually serviceable

 

you can get a replacement pin for the D series.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1320king &raquo;</TD></TR><TR><TD CLASS="quote">so what would you think i should do get a replacement pin or the gold pin??

and were would i get this at??</TD></TR></TABLE>

Why do you need a pin? You have a JUNK tranny right now.

 

ya my trans case is no good theres a whole right where the diff is... the diff blew up. so im gonna get a j1 or the y1 im not sure yet, then i was thinking maybe i should change the pin out...

what do you think i should do??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1320king &raquo;</TD></TR><TR><TD CLASS="quote">what do you think i should do??</TD></TR></TABLE>

you should get a LSD tranny..or get the tranny you want and get a aftermarket LSD for it

 

ya thats what im gona do.. but i think what to do buy a j1 trans and put a lsd in that or get a ys1 with lsd idk... how would a stock ys1 lsd hold up??

 

mista bone you think i should get a j1 trans and put a lsd or get a y1 or ys1 with a lsd?? what would be better off?

 

i hate the y1, feels like a ls trans to me. i went slower going from a s1 to y1

 

i loved my y1 had it for 2 years and raced it alot till last week sat. it blew the diff...

well i think im gona go with a ys1 lsd trans.