48re fmvb fresh rebuild wont shift - Competition Diesel.Com

claytoncox · 05-17-2020, 01:18 PM

snapped the input shaft while hauling a load one night. Couldnt contact my original builder for 3 weeks so decided to have it rebuilt by a local shop. its reinstalled now but only shifts into 1st. park and reverse work as well. Doesnt matter if you place the shifter into D,2, or 1, it only shifts to first. Ive read the could be the valve body but im not a transmission guy at all. Any thing else i can look at? thanks

jasonc · 05-17-2020, 03:08 PM

How is the TV lever set?

claytoncox · 05-17-2020, 03:55 PM

Quote:

Originally Posted by jasonc

How is the TV lever set?

The guy that Originally built it had it ziptied at a certain spot. Team fine before this last build. It’s still set at the same spot, but I have moved it and it changes nothing.

jasonc · 05-17-2020, 05:18 PM

Back it off a 1/4" or maybe a little more. Best way to handle it is make up a adjustable turn buckle.

But back it off a little, and see if it shifts.

05-17-2020, 01:18 PM	#1
claytoncox Name: claytoncox Title: learnin' Status: Not Here Join Date: Jul 2014 Location: Buffalo,Tx Member`s Gallery Posts: 103	48re fmvb fresh rebuild wont shift snapped the input shaft while hauling a load one night. Couldnt contact my original builder for 3 weeks so decided to have it rebuilt by a local shop. its reinstalled now but only shifts into 1st. park and reverse work as well. Doesnt matter if you place the shifter into D,2, or 1, it only shifts to first. Ive read the could be the valve body but im not a transmission guy at all. Any thing else i can look at? thanks __________________ 04.5 3500 2wd more fuel more air 12 3500 4x4 g56 87 pete 379 cat 18 speed

05-17-2020, 03:08 PM	#2
jasonc Name: jasonc Title: Too Much Time Status: Not Here Join Date: Nov 2009 Member`s Gallery Posts: 4,412	How is the TV lever set?

05-17-2020, 05:18 PM	#4
jasonc Name: jasonc Title: Too Much Time Status: Not Here Join Date: Nov 2009 Member`s Gallery Posts: 4,412	Back it off a 1/4" or maybe a little more. Best way to handle it is make up a adjustable turn buckle. But back it off a little, and see if it shifts.