wanted......GM400 auto box ( V12 3 speed )

[Brakebuster]

i am after a good gearbox for my own car,

please contact me if you have anything fitting my requirements

must be known good box

GM400 3 speed , for a 1989 V12

BB

[robv12]

BB, shame you need to do the swap, although you had indicated it may be on the horizon at Littlecote, will keep my eyes open for you

Rob

[Brakebuster]

i think i have some corrosion issues from standing for 12 years , even though the car was started regularly , the gearbox was never really works

so i think the bearings are flat spotted a i'm getting ' thumping ' under load , it can only be the gearbox as it does it in neutral and park as well as drive

BB

[J44EAG]

Vince,

Could Bristol Transmissions rebuild the gearbox for you? Might be a good way out of the problem if they could.

Mike

[Brakebuster]

i will give them a call , but i think any rebuild will be touching on a grand ?? unless others know different ,


a good used box will be around £200 plus fitting, which is fairly easy with a ramp and a tranny mount , and around three hours work

BB

[keri]

[not sure if it helps i have a a1977 v12 car in my drive gearbox is good my car has the early model 12 box i think it looks different to the one in the 77 car so no good to me not sure if it will fit yours its yours if it does
thanks

[bokapita]

i will give them a call , but i think any rebuild will be touching on a grand ?? unless others know different , a good used box will be around £200 plus fitting, which is fairly easy with a ramp and a tranny mount , and around three hours work

I think you could get it rebuilt for 500 tops, if the deal is you plonk down the removed gearbox at the rebuilders, and I do believe NOT rebuilding it would be a mistake - even if you have to wait for a bit to let the pocket money stack up. You have that LOVELY car, and if the box is coming out, then replacing it with a worn unit (however good) seems a shame. And in my own case, whenever I avoid/bodge/hope for the best, it ALWAYS comes back to haunt me! Also you can check the torque converter and replace that if needed;

Good luck and congrats on the car, and on the other most moving family things you mentioned. I am sure we are all full of admiration for all you have done in every field of your life.