mr.mustang214

iTrader: (8)

my 99 ss just recently purchased will not downshift from sixth to fifth anymore. It worked fine when i bought it, i just installed a diablosport tune but i don't think that would have anything to do with it. It goes into fifth fine from fourth and has no problems in any other gear, i just can't go straight sixth to fifth. I have to go to fourth then to fifth, any help would be appreciated!

99monguse

Sounds like synchro issue. My 99 SS had abn issue with 5-6 too. I had to have new syncros installed for the 5-6

mr.mustang214

iTrader: (8)

should i worry about if it goes into gear fine, just can't downshift?

firefighting1101

iTrader: (48)

my car doesn't shift from 6th to 5th either. i took it o a tranny shop and they said it was normal for my tranny. its a safety stop so that you cant accidently throw it in neutral.

firefighting1101

iTrader: (48)

not all t56's are like that but i guess a lot of them are.

sickss228

iTrader: (27)

Yeah mine does the exact same thing

proelky

iTrader: (13)

Never heard of some T56's doing that and others not. I've had two different tranny's and neither had a "lockout". The first one had issues downshifting into second, but upshifted just fine. I would think a synchro is going out.

SladeX

There's no lock out on the T-56 for 6-5.

I was just ripping thru the gears earlier today and did a few drops to fifth to do some low speed passing 4th is reserved for some play and 3rd is the serious highway roll gear.

You have a syncro issue at the least.

Wesmanw02

iTrader: (4)

Mine has no issues with the 6th-5th downshift either.

Whoever said its designed like that doesn't know their *** from a hole in the ground.

SladeX

The only lock out a T-56 has is for 2 and 3 during skip shift and the reverse lockout. Something is WRONG with your transmission if 6-5 is not working. Could be keys, syncros won't know until it's taken apart.

wrencher

iTrader: (2)

I've seen alot of shift fork pad wear cause strange 5/6 issues before. You wont know untill you tear the trans apart & check it out. Something is obviously not right.

sickss228

iTrader: (27)

Ah **** I was hoping this was a common issue, looks like I have to take the trans apart when I get a chance. Thanks for clearing this issue up

mr.mustang214

iTrader: (8)

well **** how much does getting it fixed cost?

wrencher

iTrader: (2)

Well while your there might as well rebuild it IMO. Heck even upgrade with billet keys bronze shift fork pads etc.....