Transmission Rebuilding

[4onthefloor]

My transmisson Went on the Firebird-It always had a "scratchy" 2nd gear since Ive owned it,But other than that it shifted fine-A few Days ago I took the Car for a ride, Getting on the gas a few times,When it Grinded in 2nd then made a loud Whirring Noise then Boom-I was able to limp it home in 1st gear. I called a few shops that werent even interested in doing the work I wanted,BUT > I did get ahold of a Transmission Shop who took the time to Talk with me & See what route i wanted to Go-my plans are to Put them "ROCKCRUSHER" gears with a complete rebuild-With a SPARE M-20 I Picked Up a Few Years ago-only hitch is that its a small pin case-here are the prices I got from shop
ROCKCRUSHER GEARS-$625
TORQUELOCKSLIDERS-$125
FORKS-$55
SMALL PARTS KIT-$35
307 BEARING-$42
308 BEARING-$22
1 INCH CASE-$150 & THEY WANT TO KEEP MY CASE
ALL TOGETHER-WITH LABOR BALL PARKED AT -$1600
IM not a tranny guy-But Im on a budget-So My idea is to keep my "SPARE" M20 transmission-& Just have the transmission rebuilt thats already in the Car,because its a big pin case-that right there saves $150 & my case- Also I can get "ROCKCRUSHER" Gears for $512-And all the other parts needed for Cheaper-I JUST WOULD LIKE TO KNOW what parts are needed to to rebuild a muncie And what upgrade's are needed??Im in Buffalo,Ny- Most of these Transmission Shops are SHADY untrust worthy individuals,most of them will take your GOOD parts and tell you they were junk-then put inferior parts in your transmission's! Im just trying to get some Honest opinion's-I have been burned before and will NOT go through that Hassle again..