mean_greenZ

iTrader: (1)

alright my car has 137k miles on it so does the tranny. i installed a b&m shift kit on the street/strip setting about 7 months ago. it had roughly ~124k on it then. from 1st -2nd it shifts very firm but no clunking. from 2nd-3rd it clunks into gear prolly 80-90% of the time in low rpms, not firm like it should be just a weak clunking shift. i started really noticing this a month or two ago. and one day i was driving and had to slow down for someone turning and when i rolled back on the throttle it clunked really hard upshifting. so is my trans fixing to crap out? its not the trannt mount cause i already replaced that with a poly one.

performabuilt

iTrader: (25)

My guess would be you have excessive 3-4 clutch clearance due to age and miles on the trans. This will cause a allmost hammer like effect during the 2-3 shift due to time and travel velocity for the apply, I wont say the trans is failing however it may be a sign that theres considerable wear there.

mean_greenZ

iTrader: (1)

did the shift kit contribute to this? the kit came with stiffer springs to go in the accumulator for the tow setting and metal spacers for the street/strip setting. i have the street/strip setting. so would it help to put the springs in instead of the spacers even though the ports in the valve body were drilled out for s/s?

chargedvx6

The 2-3 hole mod on the seperator plate has a big effect on the 2-3 shift too. I have had the valve body out a couple of times and tried various hole sizes on the seperator plate. Not sure about the B&M kit but the transgo kit says 0.093 on the 2-3 hole but I went to 0.101 and it clunks a little whereas with 0.093 it was nice and firm with no clunk.

performabuilt

iTrader: (25)

He is correct with the 2-3 shift the hole size plays the biggest part.