94 jumps out of 4low

[311k454]

i have a 94 sierra that won't stay in 4 low. it is a 2500hd w/ 454 and the 4hi works great. any ideas?

[gmtech4]

you have a mechanical concern inside the t case ,we cannot give ideas only how to get it fixed ,,

 

the process is that it comes out and apart and inspected,,the tech presents an estimate for repair to you for approval ,if the amount for repair blows over the cost of a rebuilt unit that estimate will be presented to you,,,,im sorry but thats all there is to it .

 

you can do the same if ya know what to look for