vss

[87 Blue Beast]

my cousin has a 91 jimmy that he put an 87 tranny and t-case into. now the 91 truck has a wire for a vss, but the t-case from the 87 has a speedo cable. the question is.. can he put a vss in place of the speedo gear? will it just bolt in?

 

[dick_landy]

swap out the cable mechanism and gear off the shaft for the vss and reluctor ring. when i bought my suburban it didnt have a reluctor ring in it. only $8 part from the dealer.

 

[dyeager535]

Wow, that's pretty darn cheap! Assuming the '87 is a 208, will the 241 parts just swap over, or at least the VSS and reluctor?

 

[Cajun4x4]

id say almost 100% no... but the 241 that was in the truck originaly will bolt directly to the back of the new trans

 

[87 Blue Beast]

well heres the problem.. he doesnt have the 241 case anymore. so what i need to know is, will the vss bolt directly in place of the speedo gear on the 208?

 

[4X4HIGH]

I want to say yes IIRC.

 

[dyeager535]

Your only issues I foresee are going to be if the reluctor ring from a 241 is retained the same way the speedometer gear is on a 208, and if the speedometer driven gear is held in with a threaded retainer of some sort, which happens to be the same threads as the VSS.

I know on at least the earlier automatic *transmissions* (2wd obviously) it wouldn't be possible without some fabrication, because the transmission housing isn't threaded, but I don't know what they did on the 208's to retain the speedometer driven gear.

 

[87 Blue Beast]

on his 208, there is a plate thing with a 10mm bolt, similiar to how a distributor is held in an engine block

 

[dyeager535]

VSS on the later 205 and the S10's are threaded in, I would be surprised if the 241 was retained differently, I think all the VSS' for the most part are the same part #.

The 208 piece you are describing is not threaded. Maybe you can thread the housing though?