When getting a Trans built - what options are must-have?

[TheClaw]

This is the only forum I am allowed to post in, so, sorry that it's not really in the right forum. I'm just looking for good help.

I'm ordering a transmission in the next week or two. I think I have it narrowed down to TRE's "Performance" trans.. I am still open to suggestions though if there's better transmissions for the money.

My question is this: TRE offers a host of extras to get on the tranny for a price. Are there any that are a "must have"? My car is a daily driven AWD 1G. I am currently in the high 12's, but have some mods on order that'll hopefully get me deep into low 12's and still be my daily driver.

Here are the extras:

GVR-4 1st gear & input shaft, add an additional $200.
Double synchro 1st gear option, add an additional $75.
HD Double synchro close ratio 3rd - 4th gearset, $350.
HD Single synchro standard ratio 3rd - 4th gearset, $150.
HD TRE-spec intermediate shaft, add an additional $200.
1st/2nd steel shift rail, add an additional $40.
3rd/4th steel shift rail, add an additional $40.
EVO shift forks w/ replaceable Bronze wear pads, add an additional $150.
Speed Design 4 spider center differential w/ thrust bearing upgrade, add an additional $450. Your center differential must be useable.
TRE center differential SPOOL, add an additional $175.
Welding of center differential, add an additional $50.
Trimmed viscous coupling, add an additional $50.
10% taller 5th gearset, add an additional $150. (91.6 -99 AWD only) 27-30 mpg
CRYOGENIC TREATMENT, add an additional $200.
REM polished assembly, add an additional $125.
New shiny bolt kit, add an additional $75.


Also, how do I know if my 91 is a 91.5 or 91.6? There's $100 price difference in the rebuild.

Thanks for any and all help.

 

[GVR4592]

Well I can tell you that the only things I've broken in a transmission were the shift forks and a buddy of mine broke a center diff. Both cars were in the low 12's high 11's. So if it was me I would look into upgrading those two items

 

[snowboarder3]

What about the gears?
i dont know much about gears but domestic guy change out there gears for shorter ones all the time.
I was just wondering if there was a simalar gear swap for dsm.